Last updated 2026-07-09
TL;DR
A communication book is a low-tech AAC tool: a binder or folder of pictures, symbols, or photos a nonspeaking or minimally verbal autistic child points to, hands over, or combines to express wants, feelings, and ideas. Research supports them as a bridge toward speech and as a permanent system when speech doesn't come. You can build one at home for under $30.
A communication book is a portable set of pictures or symbols, organized so a child can point to or hand over an image to say something they can't yet say out loud. Think of it as a physical vocabulary. The child opens the book, finds the symbol for "more" or "bathroom" or "I'm upset," and shows it to you. That's the whole idea, and it works better than its simplicity suggests.
The American Speech-Language-Hearing Association (ASHA) classifies communication books as aided augmentative and alternative communication (AAC), on the low-tech end of a spectrum that also includes speech-generating devices and apps. ASHA's position is that AAC does not suppress speech development; the evidence consistently shows it either has no negative effect on spoken language or actively supports it [1].
These books work across many autism presentations: kids who are fully nonspeaking, kids who have some words but lose them under stress, kids with apraxia of speech who know exactly what they want to say but can't motor-plan the sounds, and kids who lean on echolalia because they haven't built a flexible word system yet. None of these kids are broken. They just need a different way to get words out.
Communication book or PECS?
Parents often blur two related but distinct things. PECS (Picture Exchange Communication System) is a specific, trademarked behavioral protocol developed by Andy Bondy and Lori Frost in the early 1990s at the Delaware Autism Program [2]. It teaches children to start communication by physically handing a picture to a partner, moving through six structured phases over weeks or months.
A communication book is the broader category. PECS uses picture cards, so it counts as one type of communication book system, but not every communication book follows the PECS protocol. You can build one without PECS training, without a certified trainer, and without buying any official materials.
The PECS research base is solid for early requesting skills. A 2002 randomized study by Charlop-Christy et al. found significant increases in spontaneous speech and social-communicative behaviors in children who learned PECS [3]. That study followed just 3 children ages 3 to 12 over a fairly short period, so it's worth being cautious about how far to generalize, but later work has replicated the general direction of effects.
If your child is in early intervention or getting autism spectrum speech therapy, the therapist may use formal PECS. At home, a well-organized picture binder does most of the same work without requiring you to get PECS certified. Your speech-language pathologist can tell you which approach fits where your child is right now.
What goes inside the book
The contents should follow your child's actual life rather than a preset template, though most books end up sharing a core structure. Start with high-frequency wants and needs: food and drink your child loves, bathroom, help, stop, more, all done, yes, no. These cover the moments where a communication breakdown causes the most distress, so get those pages working before adding anything else.
From there, build outward based on daily routine: people they see regularly, places like school or the park or Grandma's house, activities and objects they care about, feelings, action words such as go or want or play, and descriptors that come later, like big, hot, or funny.
Organize by category and keep the color coding consistent. The Fitzgerald Key is a widely used system: green for verbs, yellow for descriptors, orange for nouns, blue for social words, pink for pronouns, white for misc. It's not mandatory, but it maps onto many AAC devices, which makes a later move to higher-tech systems much smoother [4].
Photo-realistic images tend to work better for very young children or kids who struggle with abstract representation. Line-art symbol sets like PCS (Picture Communication Symbols) or SymbolStix work well for many autistic kids and print consistently. Boardmaker software uses PCS symbols and is a common tool among SLPs, though it runs around $300 a year. Free alternatives include Mulberry symbols (open source) and the free symbol sets on sites like Cboard.
Building one at home
You don't need a therapist to put together a starter book, just about two hours, a printer, a small three-ring binder, laminating pouches or contact paper, velcro dots, and clear plastic card sleeves.
Here's the honest cost: laminating pouches run $10 to $15 for a 100-pack, velcro dots about $6, a small binder $3 to $5, and a pack of plastic card sleeves $8 to $12. That's $25 to $35 total, less if you already own a printer. For symbols, search for free PCS symbol sets or print real photos from your phone. If your child's SLP uses Boardmaker, ask if they can print pages for you at sessions; many will.
Print symbols at 2x2 or 3x3 inches, whichever size your child can point to accurately, then laminate everything. Cards bend, get wet, get chewed, and an unlaminated book dies in a week. Attach velcro to the back of each card and to the page backing so symbols can move to a sentence strip. Put the most-needed items on the first page, visible the second the book opens, and add a sentence strip (a horizontal velcro strip at the bottom of a page or on the cover) so your child can build two-word and eventually three-word combinations, like "I want" plus a picture of a cookie, or "go" plus "outside."
Keep the book with the child at all times. A book left on a shelf communicates nothing, and this is the single most common way families fail at this.
Teaching a child to actually use it
The book does nothing on its own. Many families build a beautiful one, then wait for the child to figure it out, and that rarely works.
The core teaching strategy is aided language stimulation (also called aided language input or modeling). Every time you speak to your child, you point to or touch the matching symbol in the book at the same time, modeling the system constantly rather than waiting for the child to start. ASHA describes this as a research-supported approach [1].
Start with one symbol in one highly motivating context. If your child loves a specific snack, put that symbol on a card, place it on the table, and when they look toward it or reach for it, guide their hand to touch or hand you the card, then give the snack right away. The link between the symbol and the outcome needs to be tight and consistent every time.
A few things that actually matter in practice: never take the book away as a consequence, since it's a communication tool and not a reward. Expect and accept approximations, so a child touching near the right symbol, or pointing in the general area, is still communicating and should be treated that way. And use errorless teaching for new symbols: present the target symbol alone at first so any selection is correct, then gradually add others alongside it.
If your child is getting speech therapy, your SLP should coach you through exactly this, since home carryover is where the real learning happens. Research on early intervention consistently shows parent-implemented therapy between sessions produces better outcomes than clinic time alone [5].
Will it slow down speech?
No. This is one of the most common worries parents bring up, but the evidence doesn't support it. ASHA's guidance on AAC states directly: "AAC does not impede speech development and may in fact facilitate it" [1]. The meta-analysis by Millar, Light, and Schlosser (2006) reviewed 23 studies and found that in 89% of cases, AAC use was associated with increases in natural speech production, with no cases of speech decreasing [6].
The worry makes intuitive sense: if a child has an easier way to communicate, why would they bother talking? But speech is intrinsically motivating for most kids. What AAC removes is the frustration of having no channel at all. Once a child can get needs met through the book, the pressure eases, and that tends to free up whatever it takes to attempt speech.
For some autistic children, a communication book is the main system for a short stretch before speech takes over. For others, it stays a lifelong tool alongside speech. For others still, it eventually gets replaced by a more capable AAC device. All three are fine outcomes.
What's the difference between a communication book and an AAC device?
A communication book is low-tech and static: no batteries, no charging, no software to crash, and it costs roughly $30 to make. An AAC device (also called a speech-generating device, or SGD) runs software that displays symbols and speaks them aloud through a synthesized voice when the child activates a symbol.
Here's how the main options stack up:
| System | Cost range | Voice output | Vocabulary capacity | Durability |
|---|---|---|---|---|
| Homemade comm book | $25 to $40 | None | Limited to printed pages | Moderate (laminate helps) |
| PECS materials (official kit) | $200 to $300 | None | Cards only | Moderate |
| Low-cost AAC app (e.g., Cboard, LetMeTalk) | Free to $35 | Synthesized speech | Hundreds of symbols | Depends on device |
| Dedicated SGD (e.g., Tobii Dynavox, PRC-Saltillo) | $3,000 to $10,000+ | Natural-sounding speech | Thousands of symbols | High (rugged cases) |
Insurance can cover dedicated SGDs. Medicare and most private plans classify them as durable medical equipment, and Medicaid covers them for children in most states under EPSDT provisions. You'll need an SLP evaluation and documentation of medical necessity first [7].
The book and the device aren't competing with each other. Most SLPs start with a low-tech book because it teaches the underlying concept: symbols mean things, and using them gets results. That foundation carries straight over to a device later. If your child seems ready to explore that route, AAC devices is worth reading next.
How many symbols should a starter book have?
Fewer than you'd think: 12 to 20 symbols, maximum, to start.
Overloading a new communication book is one of the most reliable ways to make it useless. Hand a child a book with 80 symbols they've never been taught to navigate, and they'll close it and walk away. Research on AAC implementation consistently names vocabulary size and organization as usability factors, and starting small is the recommendation across clinical frameworks [4].
Build to 40 or 80 symbols over the first few months, as the child shows reliable use of what's already there, meaning they start reaching for those symbols on their own, without a prompt, at least some of the time. That's your signal to add more.
The distinction between core and fringe vocabulary matters here. Core vocabulary is the roughly 300 to 400 high-frequency words that make up most of what anyone says: "more," "want," "go," "stop," "I," "you," "that," "big." Fringe vocabulary is the personal stuff, like your child's name for their toy, a favorite food brand, their teacher's name. A good communication book has a core section plus fringe words organized by category, and most SLPs recommend getting core vocabulary working first.
What if my child won't engage with the book at all?
This happens often, and it doesn't mean AAC is wrong for your child. It usually comes down to one of a few things.
The symbols might not be motivating enough. If nothing on the first page represents something your child urgently wants, they have no reason to reach for it. Rebuild that page around pure motivation: the show they'd do anything to watch, the snack they'd climb furniture for, the toy that makes them light up.
Or the book just isn't accessible. It's sitting in the therapy bag, on a high shelf, or only comes out during a designated "communication time." It needs to be in the child's hands or within arm's reach all the time.
Sometimes the teaching approach needs more support. If you've been waiting for the child to initiate on their own, try switching to hand-over-hand prompting with immediate reinforcement for any contact with the book.
And sometimes the format is wrong for this particular child. Some autistic children respond much better to object symbols (a piece of a food wrapper, a scrap of LEGO) before abstract pictures make sense to them. Some do better with a single-page core board than a multi-page binder. Others take to AAC apps on a tablet right away because they already use tablets for everything else.
If engagement stays low after six to eight weeks of consistent, motivated effort, that's a strong signal to get an SLP evaluation rather than keep troubleshooting alone. An SLP who specializes in AAC can run a formal assessment and tell you whether the format, vocabulary, or teaching approach needs to change. You can search ASHA's provider directory at asha.org for AAC specialists [1].
Can I use a communication book alongside speech therapy?
Yes, and in most cases you should. A communication book isn't a replacement for speech therapy; it works best as one tool inside a broader plan.
Speech therapists who specialize in autism and AAC will typically either lead the implementation themselves in sessions or coach you to run it at home under their guidance. Both approaches have research support, and the best outcomes tend to show up when home and therapy environments use the same system consistently [5].
Bring the communication book to every appointment. Ask your SLP to add new vocabulary and show you exactly how they're prompting. Record sessions on your phone if you're allowed to. The carryover you do at home across 168 hours a week matters far more than any single 45-minute session.
If you don't have an SLP yet, or you're waiting on an evaluation, starting a basic communication book at home is still appropriate. ASHA supports SLP guidance but doesn't require it before families begin using low-tech AAC at home. Starting costs you nothing. Waiting costs the child months of communicative frustration.
Little Words (littlewords.ai) offers an AI-powered speech companion built to support exactly this kind of home practice, with activities tuned to late talkers and neurodivergent kids. It's not a substitute for an SLP, but it can fill the gaps between sessions.
If in-person services aren't available where you live, or you're stuck on a long waitlist, online speech therapy is worth looking into.
How do schools handle communication books for autistic students?
Under the Individuals with Disabilities Education Act (IDEA), children with disabilities ages 3 to 21 who qualify for special education services are entitled to a free appropriate public education (FAPE) in the least restrictive environment [8]. If a child needs AAC to access their education, the school must provide it as part of a written IEP (Individualized Education Program).
In practice, the school's SLP evaluates AAC needs, and any recommended communication book or device gets documented in the IEP. The school funds materials for educational use, and many families keep a separate copy of the book at home.
A 2004 ASHA technical report on AAC in school settings recommends that school-based SLPs work with families to keep the child's communication system consistent across environments [4]. Inconsistency, different symbols at home versus school, different organization, different prompting, is a major obstacle that slows progress.
If you're working through an IEP and the school resists funding AAC, know that federal law requires schools to provide assistive technology, including AAC, when it's needed for a free appropriate public education. The National Disability Rights Network and state Parent Training and Information centers (funded under IDEA Part D) can provide advocacy support at no cost [8].
When should you move to a high-tech AAC device?
There's no single threshold, but a few signs point toward readiness for a device evaluation: the child has outgrown the book's vocabulary and keeps pointing to blank spaces or looking frustrated with limited options, recognizes symbols well and initiates communication reliably, shows interest in tablets or other screens, and has the motor control to tap a touchscreen accurately.
A speech-language pathologist with AAC expertise should run a formal feature-matching evaluation, looking at the child's motor abilities, vision, cognitive level, communication partners, and environments before recommending a specific device and access method (direct touch, switch access, eye gaze). Skipping this step and buying a device based on a Facebook group recommendation is a good way to waste thousands of dollars.
Even kids using high-tech devices should keep a communication book as backup. Devices run out of battery, break, get left at school. Every AAC user needs a low-tech fallback; this is standard practice in AAC clinical management and worth building into the IEP if your child uses a device [4].
If your child has also been evaluated for childhood apraxia of speech, that diagnosis specifically strengthens the case for strong AAC support, since motor planning difficulties can make speech unreliable even when the child already has the language knowledge to communicate.
You can start a communication book at any age, really. Kids as young as 12 to 18 months have used them well, and both ASHA and the AAP support introducing AAC early. There's no evidence that starting young causes any harm, and plenty of evidence it cuts down the frustration that comes with not being able to get your message across. So if your child isn't hitting speech milestones yet, a simple low-tech book is worth starting now, formal evaluation or not. Whether to use photos or line drawings comes down to the individual kid. Younger children, and those earlier in symbolic understanding, tend to do better with real photos of their own things, people, and places. Kids further along tend to do fine with PCS drawings or SymbolStix. There's no way to know in advance, so start with photos if you're unsure, then try line drawings once your child tolerates symbols, since drawings are easier to print and carry. Worth clearing up: PECS (Picture Exchange Communication System) is not the same thing as a communication book. It's a specific six-phase protocol using picture cards, one particular method within the broader category of picture-based communication. You can build and use a communication book at home without following the formal PECS steps at all. If your child's school or therapist is already running PECS, ask which phase they're on so home lines up with school. Verbal autistic kids benefit from these books too. Plenty of autistic children who have words lose access to them under stress, sensory overload, or emotional dysregulation, and a communication book gives them something solid to fall back on when speech isn't available. It can also help kids who rely on echolalia communicate in a more flexible, intentional way. Having that backup doesn't make speech less likely. If anything, it takes some pressure off, and that pressure is often what shuts speech down in the first place. Building one yourself is genuinely cheap. A working homemade book usually runs $25 to $40 in materials: a small binder ($3 to $5), laminating pouches ($10 to $15), velcro dots ($6), and clear card sleeves ($8 to $12). You can print symbols free using open-source sets like Mulberry symbols, or just print photos straight from your phone. The official PECS starter kit, if you want the structured protocol materials, runs around $200 to $300. Core vocabulary is the small set of high-frequency words, roughly 200 to 400 of them, that make up most of what anyone says: "want," "more," "go," "stop," "help," "look," "that." Research on AAC shows kids with access to functional core vocabulary communicate more flexibly and generalize to new situations faster than kids stuck with a set of specific nouns. Every communication book should have a core vocabulary section built in. On cost and coverage, low-tech books are cheap enough that most families just pay for them directly. High-tech AAC devices are a different story: they can run $3,000 to $10,000 or more, but they're typically covered as durable medical equipment under Medicare, most private insurance, and Medicaid (through EPSDT in most states). You'll need an SLP evaluation documenting medical necessity and, in most cases, a physician prescription. Budget two to four months for the funding process. How do you know it's time to move from a book to a device? Watch for reliable, unprompted use of the book to start communication, frustration with the vocabulary being too limited, clear symbol recognition, and enough motor control for a touchscreen or other access method. At that point, a formal AAC feature-matching evaluation with a speech-language pathologist who has AAC expertise is the right next step. Don't skip that evaluation and buy a device because it worked for someone else's kid: the wrong device wastes real money and real time. When you're organizing a book, group pages by topic: food and drink, places, people, activities, feelings, body parts, actions. If a high-tech device might be down the road, color-code using the Fitzgerald Key (green for verbs, yellow for descriptors, orange for nouns, blue for social phrases). Put the highest-need items on the first page so they're easy to find, and keep a sentence strip on the cover or first page for building two-word combinations. If school and home are running different systems, that's a real problem and it does slow progress. Raise it at the next IEP meeting: ASHA recommends AAC systems stay consistent across environments. Ask the school SLP to share their symbol set and organization so you can mirror it at home. If the systems genuinely can't match, at least make sure the vocabulary overlaps for the words your child needs most. Two different symbol sets means your child is essentially learning two languages instead of one, which is a harder job than it needs to be. There are also free apps that work like a digital communication book. Cboard is free and open-source, LetMeTalk is free on Android, and CommunicoTot and TouchChat offer free trials. These are good low-cost starting points if your child takes to a tablet better than a binder. They don't replace an SLP evaluation for kids with significant communication needs, but they're worth trying at home, especially if your child is already comfortable with a tablet. Aided language stimulation (sometimes called ALgS, or just modeling) means pointing to or touching symbols in the book every time you say the matching word out loud. You do this constantly, way more often than during any dedicated "teaching" moment. It's research-backed, and it's how kids come to understand that the symbols function as a real language system. Start by modeling just two or three symbols per interaction; after a few weeks it starts to feel natural for both of you. If a teacher tells you communication books are only for kids without speech, that's not accurate. ASHA's guidance on AAC is explicit that these tools help children across the full range of verbal ability, including kids with emerging speech that becomes unreliable under stress. Communication books and devices are used appropriately by children who already have some words, children with hyperlexia, children with apraxia of speech, and children who rely on echolalia. The idea that AAC is reserved for nonspeaking children is outdated and doesn't match current clinical evidence. Timeline varies a lot. Some kids start communicating independently within a few weeks of consistent teaching; others need three to six months of daily practice before spontaneous use shows up. It depends on where the child's communication was starting from, how consistently the book is actually on hand, how motivating the vocabulary is, and how consistently the adults around them model and respond. If you've stuck with it for three solid months and seen nothing, check in with an SLP rather than deciding AAC just isn't for your child.Sources
- ASHA, Augmentative and Alternative Communication (AAC) overview: AAC does not impede speech development and may facilitate it; ASHA endorses AAC across ability levels
- Pyramid Educational Consultants, PECS official history and overview: PECS was developed by Andy Bondy and Lori Frost at the Delaware Autism Program and is a trademarked six-phase protocol
- Charlop-Christy et al. (2002), Journal of Applied Behavior Analysis, PECS study: PECS use associated with significant increases in spontaneous speech and social-communicative behaviors in children ages 3 to 12
- ASHA, Roles and Responsibilities of Speech-Language Pathologists with Respect to Augmentative and Alternative Communication (2004 technical report): Fitzgerald Key color coding, core vs fringe vocabulary framework, and school-based AAC consistency recommendations
- Kaiser & Hancock (2003), Mental Retardation and Developmental Disabilities Research Reviews, parent-implemented language intervention: Parent-implemented intervention between clinic sessions produces better language outcomes than clinic time alone
- Millar, Light, & Schlosser (2006), Journal of Speech, Language, and Hearing Research, AAC and natural speech meta-analysis: In 89% of AAC studies reviewed, AAC use was associated with increases in natural speech production; no cases of speech decreasing
- Centers for Medicare and Medicaid Services (CMS), Speech Generating Devices coverage policy: SGDs are classified as durable medical equipment and are covered under Medicare and Medicaid with SLP evaluation and physician prescription
- U.S. Department of Education, IDEA Individuals with Disabilities Education Act overview: IDEA entitles children ages 3 to 21 with disabilities to FAPE including assistive technology and AAC when needed for educational access
- AAP Council on Children with Disabilities (2013), Pediatrics, role of pediatrician in AAC: American Academy of Pediatrics supports early AAC introduction and recommends pediatricians refer for AAC evaluation when speech delays are present
- Beukelman & Mirenda, Augmentative and Alternative Communication (4th ed.), core vocabulary research: Approximately 200 to 400 high-frequency core vocabulary words make up the majority of daily communication for all speakers