Reading A-Z decodable books: what parents need to know

Last updated 2026-07-09

What are Reading A-Z decodable books, exactly?

Reading A-Z is a subscription reading platform from Learning A-Z, a division of Cambium Learning. Its decodable book library gives teachers and parents printable and projected texts in which nearly every word follows phonics patterns that have already been explicitly taught. That's the definition of a decodable: a book controlled so a beginning reader can apply their current phonics knowledge to decode almost every word on the page, rather than memorizing words by sight or guessing from pictures.

The platform has more than 2,000 books total across its leveled reading library, and within that library it flags a subset as decodable. Those decodable texts are organized by phonics skill, so you can search for books that practice short-a CVC words, consonant blends, silent-e patterns, vowel teams, and so on. Each book identifies the target phonics pattern on the cover or in a teacher guide.

Home subscriptions cost roughly $100 per year as of 2025, though school and district licenses vary widely. The platform also sells a standalone "Reading A-Z" home plan separate from its Raz-Plus school plan, so check which tier you're buying. ^[1]

One thing to be clear about upfront: Reading A-Z is primarily designed for classroom teachers. The parent-facing experience is workable but clunky. If you're a parent buying it independently, expect a bit of a learning curve on how the site is organized.

How do Reading A-Z decodable books fit into the Science of Reading?

The Science of Reading is a body of research, not a single program. The core finding relevant here is that early readers need explicit, systematic phonics instruction, and that they should practice reading texts in which the words they meet match the phonics they've been taught ^[2]. Decodable books are the practical tool that delivers that practice.

Reading A-Z's decodable books match that principle in their structure: they're organized by phonics skill, they control vocabulary so high-frequency irregular words are introduced gradually, and they're meant to follow a scope and sequence rather than just being assigned by reading level. That's meaningfully different from the leveled-reader approach that dominated classrooms for decades, where a Level D book might have easy words and easy pictures but no phonics logic at all.

The honest caveat is that Reading A-Z's roots are in Fountas and Pinnell-style leveling, which is a balanced literacy framework. The decodable books exist as a category within a platform that also contains many books that are not decodable and are not organized by phonics skill. A Science of Reading purist would say the platform is trying to serve two philosophically different reading instruction models at once. That's not necessarily a dealbreaker for home use, but it means you have to deliberately choose the decodable section rather than browse by level. ^[3]

A 2019 meta-analysis in Psychological Science in the Public Interest, the source most researchers point to for the state of reading science evidence, concluded that systematic phonics instruction produces stronger outcomes than whole-language or balanced literacy approaches, with effect sizes ranging from roughly 0.30 to 0.86 depending on the population ^[4]. Decodable practice texts are the vehicle for that instruction, not a replacement for the explicit teaching itself.

How are the books organized and what phonics skills do they cover?

Reading A-Z organizes its decodable books into a sequence of phonics units. The progression follows a fairly standard scope and sequence:

• Consonant sounds and short vowels (CVC words)
• Consonant blends and digraphs
• Long vowel patterns (silent-e, vowel teams)
• R-controlled vowels
• Diphthongs and other vowel patterns
• Multi-syllabic word strategies

Each decodable book in the library lists its target skill and the high-frequency words introduced in that text. Most books in the early levels run 100 to 250 words, short enough for a child to finish in a single sitting. Longer books appear at higher levels where more complex patterns are practiced.

The books come in two formats: printable PDFs you fold into a little booklet, and projected or digital versions for reading on a screen. Both are included in a subscription. The printable format is genuinely useful for home practice because the child can hold and re-read a physical book, which some kids respond to better than a screen. ^[1]

One organizational quirk worth knowing: the decodable books are mixed into the broader leveled reading library on the site. You have to filter specifically for "Decodable" book type. If you don't do that, you'll be browsing 2,000-plus titles, most of which are not phonics-controlled.

Reading A-Z decodable books vs. other decodable book programs: how do they compare?

Parents often want to know how Reading A-Z stacks up against other decodable book options before spending money. Here's a straightforward comparison of the main contenders.

Program	Format	Approximate Cost	Scope & Sequence	Digital Access
Reading A-Z (Raz-Plus)	Print + Digital	~$100/yr (home)	Moderate	Yes
Bob Books	Print physical books	~$15-25 per set	Basic, CVC-heavy	No (some apps exist)
Flyleaf Publishing	Print + Digital	~$300/yr or per book	Strong, explicit	Yes
Decodable Readers (95 Percent Group)	Print	~$8-12 per book	Strong, matched to CKLA/SoR	Limited
Primary Phonics (Educators Publishing Service)	Print	~$50 per set	Classic, reliable	No
Rooted in Reading Decodables	Digital subscription	~$75-120/yr	Strong SoR match	Yes

Reading A-Z's main advantage is volume. If your child needs hundreds of practice texts across many different patterns, the breadth is hard to beat at that price. Its weakness is that it wasn't built from the ground up as a decodable-first platform, so you're working inside a system that also holds a lot of non-decodable content.

For a child with dyslexia who needs a tightly controlled, linguistically organized reading diet, I'd honestly lean toward Flyleaf or a structured literacy program's decodable readers over Reading A-Z as a standalone solution. For a typically developing reader in kindergarten or first grade who just needs more practice texts to supplement classroom instruction, Reading A-Z is a reasonable, affordable choice. ^[5]

If you're working with a reading tutor, ask them which decodable series they already use. A consistent phonics scope and sequence across home and tutoring matters more than which brand you pick.

Are Reading A-Z decodable books appropriate for kids with dyslexia?

Dyslexia is a specific learning disability that affects accurate and fluent word recognition, spelling, and decoding. The International Dyslexia Association and the National Reading Panel both conclude that children with dyslexia need the same thing as all beginning readers, just more of it and more explicitly: systematic, explicit phonics instruction with lots of practice in decodable texts ^[6].

So in principle, Reading A-Z decodable books can be part of a dyslexia intervention. In practice, there are real limits.

First, Reading A-Z books are not designed as Structured Literacy materials. Structured Literacy, as defined by the International Dyslexia Association, follows a specific set of principles: instruction is explicit, systematic, sequential, cumulative, and multisensory. Reading A-Z books provide practice texts but not the explicit instruction itself, and the platform doesn't include the multisensory components (tapping out phonemes, encoding alongside decoding, and so on) that effective dyslexia intervention requires.

Second, a child whose IEP specifies a particular evidence-based reading program like Wilson Reading System, SPIRE, or RAVE-O should be getting decodable texts that correspond to exactly where they are in that program's sequence. Reading A-Z's scope and sequence may or may not match the program the school uses. Mixing unmatched decodables can confuse a child who is working hard to consolidate phonics patterns.

If your child has a reading-related IEP, the safest move is to ask the special education teacher which decodable books match the child's current program and to request a list you can use at home. You have the right under IDEA to receive information about your child's educational program ^[7]. The school is not required to buy you a home library, but it is required to share what it's using and why.

IDEA, the Individuals with Disabilities Education Act (20 U.S.C. § 1400 et seq.), states that parents are entitled to participate in the development of their child's IEP and to receive notice of the educational approaches being used ^[7]. That right is your standing for getting specific answers about reading materials.

How do you use Reading A-Z decodable books effectively at home?

Buying access is the easy part. Using decodable books in a way that actually builds reading skill takes a little more intention.

Start with an honest skill inventory. Before picking books, you need to know which phonics patterns your child has been taught and which ones are solid versus shaky. If you don't know, a quick informal check is to give them a list of nonsense words (like "fip," "chob," "strale") for the patterns in question. Nonsense words tell you whether the child is decoding or just remembering whole words. ^[8]

Match the book to the pattern. In Reading A-Z, filter by decodable type and then by the specific phonics skill you want to practice. Don't pick a book and then discover mid-session that it needs knowledge your child doesn't have yet. Failing to decode words isn't practice. It's just frustrating.

Before reading, pre-teach any exception words. Every decodable book includes a few high-frequency words that don't follow the target phonics pattern. Reading A-Z lists these at the front of each book. Teach those words explicitly before the child opens to page one.

During reading, let the child work it out. Resist the urge to supply a word after two seconds of hesitation. Give it five to eight seconds. Offer a prompt if needed: "What's the vowel sound in the middle? What does that make?" rather than just saying the word.

After reading, do a brief word sort or word-building activity with the target pattern. Decodable books work better paired with explicit phonics practice, not used as the only instructional activity. ^[2]

Re-read the same book. Fluency builds through repeated reading of the same text. The goal isn't just accuracy. It's automatic, effortless decoding. A child who can read a book slowly and accurately should read it again the next day and the day after that until it feels smooth.

For 1st grade reading comprehension skills to develop alongside decoding, give simple retelling tasks after the re-reads: "Tell me what happened in three sentences." This keeps meaning in the picture even when the texts are simple.

What does the research actually say about decodable books and reading outcomes?

The research base for decodable books is solid but more nuanced than the loudest advocates on either side tend to admit.

The strongest evidence comes from studies of systematic phonics instruction broadly, not from studies of decodable books as a product category. The National Reading Panel's 2000 report and later meta-analyses confirm that systematic phonics instruction is more effective than non-systematic approaches ^[2]. Decodable texts are assumed to be a necessary vehicle for practicing what's been explicitly taught, but there are surprisingly few randomized controlled trials that isolate "decodable books" as the variable and measure their independent effect.

A 2020 study in Reading and Writing by Cheatham and Allor examined the decodability of texts used in early reading instruction and found that higher decodability was associated with better word reading outcomes, particularly for students at risk for reading difficulties (Cheatham & Allor, 2020, Reading and Writing, 33(6)) ^[9]. That's meaningful direct evidence.

What the research does not support is the idea that decodable books alone are enough. The National Reading Panel identified five essential components of reading instruction: phonemic awareness, phonics, fluency, vocabulary, and comprehension ^[2]. Decodable books serve the phonics and fluency components. They don't, by themselves, build rich vocabulary or deep comprehension, which is one reason early decodable readers should also get plenty of read-aloud time with complex picture books and informational texts.

The honest summary: decodable practice is necessary but not sufficient. Use Reading A-Z decodable books as one piece of a reading diet, not the whole meal.

What's the difference between decodable books and leveled readers?

This question comes up constantly, and the confusion makes sense because schools have used leveled readers for decades and the shift to decodables is recent.

Leveled readers (like Guided Reading levels A-Z from Fountas and Pinnell) are organized by text complexity, based on factors like sentence length, vocabulary difficulty, and concept load. A Level C book is easy. A Level M book is harder. The assumption behind leveled readers is that children use multiple cueing strategies, including pictures, context, and meaning, to identify words they can't fully decode. Research has not supported that cueing model as a primary approach to word identification. ^[3]

Decodable books are organized by phonics pattern. The words in the book are chosen specifically because a child who knows the target pattern can sound them out, letter by letter or pattern by pattern. Pictures are present but deliberately not enough to guess the words, because the goal is to make decoding the successful strategy.

Think of it this way: a leveled reader asks the child to use every available cue to figure out the word. A decodable book asks the child to use phonics. For beginning readers, and especially for kids with dyslexia, the decodable approach is what the evidence supports. ^[4]

Reading A-Z contains both leveled readers and decodable books. The leveled readers on the platform are not phonics-controlled. Using them interchangeably with the decodables will undermine the consistency your child needs, especially at the beginning stages of reading.

For children who have moved past the decoding stage and are working on fluency and how to improve reading comprehension, leveled texts and trade books become more useful. The goal of decodable books is to get to that point.

How do Reading A-Z decodable books connect to IEP and 504 reading goals?

If your child has an IEP or 504 plan related to reading, decodable books connect directly to the intervention component of that plan.

Under IDEA, an IEP must include a description of the specially designed instruction your child will receive, including the methods and materials ^[7]. If the school uses decodable texts as part of instruction, those should be specified or at least inferable from the program description. You can ask at any IEP meeting: "Which decodable books or decodable reading series is the school using, and how does it connect to the phonics scope and sequence in [child's] intervention program?"

For 504 plans, which don't require specialized instruction but do require accommodations, decodable books are less directly relevant, though a 504 might include access to digital decodable texts or extended time to practice fluency.

If your child's school uses a reading program that does not include decodable books, and your child is significantly behind in decoding, that's a conversation worth having. The Every Student Succeeds Act (ESSA) encourages evidence-based reading instruction, and many states have now passed reading laws that specifically require phonics instruction built on the science of reading ^[10]. Knowing your state's law gives you standing to ask specific questions.

The ReadFlare parent advocacy kit includes a set of questions parents can bring to IEP meetings specifically about reading instruction, including how to ask about decodable text use without sounding adversarial. That kind of preparation makes a real difference in those meetings.

A practical note: bringing a specific request ("can we add decodable fluency practice at home from the same series used in class?") to an IEP meeting is more likely to get a useful answer than a general concern ("I think my child needs more phonics").

What are the main limitations of Reading A-Z decodable books?

No resource is perfect, and Reading A-Z has real weaknesses worth naming before you spend money or build a home routine around it.

The platform is big and unfocused. Because it's built to serve multiple instructional philosophies, the decodable books are one section of a very large library that also holds non-decodable content. A parent or teacher who doesn't know to filter specifically will end up with books that look similar but are organized by completely different principles.

The scope and sequence is not as explicit as in a true structured literacy decodable series. Flyleaf, UFLI Foundations, or the decodable readers from 95 Percent Group tell you exactly which phoneme-grapheme correspondences appear in each book and in what cumulative order. Reading A-Z's decodable scope and sequence is available but less prominent and less granular.

The stories can be thin. Because vocabulary is controlled, the sentences in early decodables are simple and sometimes stilted. "The cat sat on the mat. The fat rat sat on the cat." That's fine. It's what decodables have to do. But it means comprehension practice is limited. Make sure your child gets richer language from read-alouds, audiobooks, and more complex texts you read aloud. ^[2]

Printing is necessary for the best experience. The digital read-along format does not give the same fluency-building benefit as a child reading independently and tracking print with a finger. If you don't have a printer or don't want to buy ink, the platform is less useful than it looks.

For supplementary reading comprehension practice beyond what the decodable texts provide, you'll need to look elsewhere. Decodable books are a means to an end, not a complete reading program.

How much does Reading A-Z cost and is it worth it?

The home subscription for Reading A-Z (through the Raz-Plus home plan or similar tiers) is roughly $95 to $110 per year as of 2025, though Learning A-Z adjusts pricing periodically and runs promotional rates. School and district licensing is negotiated separately and can be substantially different per seat. ^[1]

Is it worth it? That depends on what you're comparing it to.

If you need a large volume of decodable practice texts quickly and your child's classroom instruction already provides a solid phonics scope and sequence, the breadth of Reading A-Z is genuinely useful and the price is reasonable.

If you want a tool to replace a structured literacy intervention, this isn't that tool and isn't worth any price for that purpose.

If you want free decodable books, UFLI Foundations from the University of Florida Literacy Institute publishes free printable decodable texts built on its scope and sequence ^[11]. The Florida Center for Reading Research also maintains free printable decodable readers and supplementary phonics materials ^[12]. These are legitimate, peer-developed resources from university reading researchers. Spending money on Reading A-Z when your budget is tight is hard to justify if you use those free options consistently.

The ReadFlare free reading tools page links to several of these no-cost decodable resources alongside other screening and practice materials, so you can compare before committing to a paid subscription.

My honest take: Reading A-Z is fine for what it is. If your school already uses it and you want to extend practice at home, the home subscription makes sense. As a first purchase for a parent trying to help a struggling reader from scratch, I'd try the free UFLI decodables first and see whether consistency and parental involvement do the heavy lifting before adding a subscription cost.

How do you know if decodable books are working for your child?

Progress in decoding is measurable. You don't need a psychologist or a formal assessment to see whether the books are doing their job, though formal assessments help when you have real concerns.

The clearest sign that decodable practice is working is that the child's accuracy and speed on words with the target phonics pattern improves over two to four weeks of consistent practice. If a child could read 60% of short-e CVC words accurately in week one and 90% accurately and quickly by week four, that's real progress.

A simple measure: take a timed one-minute reading of a new decodable book at the child's target level. Count words read correctly. Do this every two weeks with a book at the same level. The number should rise. Research benchmarks suggest beginning first graders should read around 20 to 40 words correct per minute by mid-year on decodable texts, growing toward 60 to 80 by year's end, though norms vary by source and should be treated as rough guides ^[13].

If progress stalls despite consistent practice, look at two things: first, whether the explicit phonics instruction is strong enough (decodable books don't teach phonics, they practice it), and second, whether there's an underlying processing issue, like phonological awareness difficulties, that would benefit from formal evaluation.

For a broader assessment picture, tools like DIBELS or curriculum-based measures are what schools typically use. A reading comprehension test can tell you whether decoding gains are transferring to connected reading comprehension, which is ultimately the goal.

If you're not seeing progress after six to eight weeks of daily, structured practice, push for a formal evaluation. Under IDEA, you can request an independent educational evaluation if you disagree with the school's assessment of your child's needs ^[7].

Frequently asked questions

Are Reading A-Z decodable books built on the Science of Reading?

Partially. The decodable books are organized by phonics skill and control vocabulary, which matches Science of Reading principles. But Reading A-Z as a platform also contains many non-decodable leveled readers organized by a different model entirely. The decodable section specifically is reasonably matched; the platform as a whole is not a Science of Reading-first program. Filter deliberately to get the decodable content.

Can I use Reading A-Z decodable books for a child with dyslexia?

They can be a supplementary practice tool, but they're not designed as structured literacy materials and don't include the multisensory, cumulative instruction that dyslexia intervention requires. If your child has a reading IEP, ask the school which decodable series matches the intervention program being used, then use those books at home for consistency. Mixing unmatched decodables can slow progress.

What grade level are Reading A-Z decodable books appropriate for?

Most decodable books target kindergarten through second grade, when systematic phonics is the central reading task. Some higher-level decodables extend into third grade for complex vowel patterns and multisyllabic words. Older struggling readers who haven't mastered phonics fundamentals can also use early-level decodable texts without embarrassment, especially if they read them independently rather than in a group.

How many decodable books does Reading A-Z have?

Learning A-Z does not publish a single precise count that is regularly updated, but the decodable subset within its broader library of 2,000-plus books numbers in the hundreds, covering phonics skills from basic consonant-vowel-consonant words through complex vowel patterns and multisyllabic strategies. The exact number available to you depends on which subscription tier you buy.

Are there free alternatives to Reading A-Z decodable books?

Yes. The University of Florida Literacy Institute publishes free printable decodable readers through its UFLI Foundations program. The Florida Center for Reading Research offers free decodable texts and phonics materials. These are research-developed resources, not marketing freebies. If budget is a concern, try these consistently before paying for a subscription.

How is Reading A-Z different from Raz-Plus?

Raz-Plus is the school and classroom version of the Reading A-Z platform, with added features like teacher dashboards, student accounts, and progress tracking. Reading A-Z (sometimes called the home plan) is the simpler parent-facing subscription. Both include access to decodable books. Pricing and features differ, so confirm which plan you're buying before subscribing.

What phonics scope and sequence do Reading A-Z decodable books follow?

Reading A-Z's decodable books follow a common scope and sequence: consonant sounds and short vowels first, then blends and digraphs, then long vowel patterns including silent-e and vowel teams, then r-controlled vowels, diphthongs, and multisyllabic word strategies. The sequence is on their site but documented less granularly than in purpose-built structured literacy programs like UFLI or Wilson.

Should my child re-read the same decodable book multiple times?

Yes, and this is one of the most underused strategies in home reading practice. Re-reading builds fluency, the automatic, effortless word recognition that frees up cognitive resources for comprehension. A child who reads a decodable accurately but slowly should read the same text again the next day and the day after, until the reading sounds smooth. That's not boring repetition. It's how fluency actually develops.

Can decodable books replace read-alouds and other reading activities?

No. Decodable books address phonics and fluency but do almost nothing to build vocabulary, background knowledge, or listening comprehension, all of which predict later reading success. Children practicing decodables also need daily read-alouds of complex, rich texts well above their independent reading level. Think of decodable practice and read-alouds as two separate jobs that both need to happen.

What should I do if my child gets frustrated with decodable books?

First, check that the book matches the phonics patterns your child actually knows. Frustration usually means the text is too hard, not that decodable books are wrong for your child. Drop back one level and confirm mastery there first. Keep sessions short. Five to ten minutes daily beats thirty minutes twice a week. And separate practice from pressure: if the book becomes a battleground, take a break and return when the emotional temperature is lower.

Do schools have to use decodable books under federal law?

Federal law does not mandate decodable books specifically. IDEA requires that IEP services be based on peer-reviewed research to the extent practicable (20 U.S.C. § 1414(d)(1)(A)(i)(IV)), and ESSA encourages evidence-based interventions. Many states have passed their own reading laws requiring systematic phonics instruction, and some specify decodable texts. Check your state's reading legislation to know what applies where you live.

How long should a child spend reading decodable books each day?

Five to fifteen minutes of focused, daily decodable practice beats longer sporadic sessions. Consistency matters more than duration. For a child in active phonics instruction, one new decodable book per week plus re-reads of recent books is a reasonable home routine. If your child has an IEP, the school's reading specialist may recommend a frequency that matches the intervention program.

At what point should a child move away from decodable books?

When a child can read grade-level trade books with strong accuracy and reasonable fluency, the job of decodable books is done. Most children who receive effective phonics instruction can transition away from controlled decodable texts by mid-second grade. Children with dyslexia may need decodable or highly controlled texts for longer. The transition should be gradual, not abrupt, and comprehension should be monitored as text complexity increases.

Sources

1. Learning A-Z, Reading A-Z product information: Reading A-Z is a subscription platform from Learning A-Z with 2,000-plus leveled books including a decodable subset; home subscriptions are approximately $100 per year
2. National Institute of Child Health and Human Development, Report of the National Reading Panel (2000): Systematic phonics instruction is more effective than non-systematic instruction; five essential components of reading are phonemic awareness, phonics, fluency, vocabulary, and comprehension
3. Fountas & Pinnell Literacy, Guided Reading level descriptions (Heinemann): Leveled readers are organized by text complexity using factors like sentence length and vocabulary, not by phonics scope and sequence
4. Seidenberg et al., Psychological Science in the Public Interest, 2019: Systematic phonics instruction produces stronger outcomes than whole-language or balanced literacy approaches, with effect sizes ranging from approximately 0.30 to 0.86
5. International Dyslexia Association, Knowledge and Practice Standards for Teachers of Reading: Children with dyslexia need explicit, systematic, multisensory structured literacy instruction; decodable texts are a component but not a replacement for multisensory phonics teaching
6. International Dyslexia Association, Definition of Dyslexia: Dyslexia is a specific learning disability affecting accurate and fluent word recognition, spelling, and decoding; treatment requires systematic explicit phonics instruction
7. U.S. Department of Education, Individuals with Disabilities Education Act (IDEA), 20 U.S.C. § 1400: Under IDEA, parents are entitled to participate in IEP development and receive notice of educational approaches; IEP services must be based on peer-reviewed research to the extent practicable (§ 1414(d)(1)(A)(i)(IV))
8. Florida Center for Reading Research, Assessment resources: Nonsense word fluency measures assess whether children are decoding by phonics patterns rather than memorizing whole words
9. Cheatham & Allor (2020), Reading and Writing, 33(6), Springer: Higher text decodability was associated with better word reading outcomes, particularly for students at risk for reading difficulties
10. U.S. Department of Education, Every Student Succeeds Act (ESSA) overview: ESSA encourages evidence-based reading instruction; many states have enacted reading legislation requiring phonics aligned to the science of reading
11. University of Florida Literacy Institute, UFLI Foundations decodable readers: UFLI Foundations publishes free printable decodable texts built on its phonics scope and sequence, developed by university reading researchers
12. Florida Center for Reading Research, Free instructional materials: The Florida Center for Reading Research provides free printable decodable readers and phonics supplementary materials
13. Dynamic Measurement Group, DIBELS 8th Edition norms and benchmarks: Research benchmarks suggest beginning first graders should read approximately 20 to 40 words correct per minute on decodable texts at mid-year, growing to 60 to 80 by year's end