There’s a question that sits at the heart of every interaction with a child who doesn’t speak the way we expect. It’s the question behind every confused look at a playground, every impatient sigh in a waiting room, every well-meaning adult who speaks slowly, loudly, or not at all.
What is going on inside?
Most of us never get the answer. We interpret from the outside. We watch the behaviour and guess. We build entire systems of support around what we think a child needs, without ever hearing from the child themselves.
The Reason I Jump by Naoki Higashida changes that. Written when Naoki was just thirteen years old, this book is a window into the mind of a nonspeaking autistic boy who has far more to say than the world ever expected. He wrote it by pointing to letters on a cardboard alphabet grid – one letter at a time. What emerged is one of the most extraordinary first-person accounts of autism ever published.
Why this book matters
There is no shortage of books about autism. But almost all of them are written about autistic people, not by them. The researchers observe. The clinicians diagnose. The parents describe. And somewhere in all of that, the autistic person’s own voice gets lost.
Naoki’s book exists because he refused to let that happen. With extraordinary patience and determination, he answered fifty-eight of the questions that people most commonly ask about autism. Not with clinical detachment, but with the raw honesty of a teenager who desperately wants to be understood.
The result is a book that doesn’t just inform. It reorients. After reading it, you cannot look at an autistic child the same way. The behaviours that once seemed baffling begin to make a different kind of sense – not as deficits, but as a person navigating a world that wasn’t built for how their brain works.
What the book covers
The book is structured as a series of questions and answers. Some are practical: Why do you line things up? Why do you flap your hands? Why do you repeat what people say? Others are deeply personal: Do you enjoy being alone? Would you like to be normal? What’s the reason you jump?
Naoki’s answers are startling in their clarity. He explains that when he echoes a question back, he’s not being difficult – he’s searching through his memory for the right response, and the echo helps him hold onto the question while he finds it. He describes how his body often moves without his permission, how sounds can overwhelm like a physical force, and how memory doesn’t work in a straight line for him – it’s more like scattered dots that he has to piece together each time.
Woven between the Q&A sections are short fictional pieces – tender, dreamlike stories that reveal Naoki’s rich inner world. They are a quiet reminder that a child who struggles to say “I’m fine” might still carry entire landscapes of thought and feeling inside.
The English translation includes an introduction by David Mitchell (author of Cloud Atlas), who is himself the parent of an autistic child. Mitchell describes the book as the “Rosetta Stone” for understanding his son – and for many families, that description rings deeply true.
For parents: hearing the voice you’ve been waiting for
If you are the parent of a nonspeaking or minimally speaking autistic child, this book may feel like the first time someone has handed you a direct line to your child’s inner world.
Naoki addresses the questions that keep parents up at night. Does my child understand me? Yes – far more than you might think. Why do consequences and rewards seem not to work? Because the behaviour you’re seeing isn’t defiance; it’s often a body that won’t cooperate with a willing mind. Does my child know I love them? Yes. And they need to hear it, even when they can’t respond.
One of the most powerful passages in the book is Naoki’s plea to parents and carers: don’t use baby talk. Don’t assume a lack of speech means a lack of understanding. Speak to your child with the same respect you’d give anyone else. They are listening. They are taking it in. And the way you speak to them shapes how they see themselves.
Naoki writes with extraordinary directness about what he needs from the people around him: patience, age-appropriate language, and above all – the belief that he has something to say, even when the words won’t come. His most repeated message to parents is simple and devastating: “Please, whatever you do, don’t give up on us.”
This is not a book of strategies or techniques. It’s something rarer – a book that changes what you see. And once you see differently, the strategies follow naturally.
For teachers: behaviour is communication
If you take one idea from this book into a classroom, let it be this: not speaking is not the same as not thinking.
Naoki describes a world where his body and his mind are often working at cross purposes. He knows the answer but can’t say it. He wants to sit still but his legs won’t cooperate. He understands the instruction perfectly – and then does the opposite, not out of defiance, but because the signal between intention and action gets scrambled somewhere along the way.
For educators, this reframe is everything. The student who repeats your question back isn’t being rude – they’re holding onto it while they search for a response. The student who rocks or flaps isn’t being disruptive – they’re regulating a sensory system that’s in overdrive. The student who looks away during conversation isn’t disengaged – they may actually be more able to listen when they’re not also processing visual input.
Professional reflection prompts from this book:
Listen beyond words – communication takes many forms. Recognise that a child’s body may not reflect their understanding. Repetition may be connection, not confusion. Sensory overwhelm is real and invisible. Ask: “What is this child trying to tell me?”
Naoki also offers an insight that should reshape how we think about memory and learning in autistic students. He explains that his memory doesn’t work like a timeline – it’s more like a pool of dots, and he has to find the right dot and connect it to the present moment before he can respond. This takes time. It takes patience. And it takes an environment where silence is not interpreted as absence.
For everyone: presuming competence
Perhaps the most important lesson in this book isn’t for parents or teachers specifically. It’s for all of us.
Naoki was thirteen when he wrote this book. He is nonspeaking. He communicates by pointing to letters on a grid, one at a time. And he produced a work of such insight, empathy, and emotional intelligence that it has been translated into more than thirty languages and read by millions of people around the world.
Let that sink in. A child the world assumed had nothing to say wrote a book that changed how millions understand autism.
This is what presuming competence looks like in practice. It means approaching every person – regardless of how they communicate – with the assumption that there is a full, rich, thinking mind behind whatever behaviour you can see. It means understanding that not speaking is not the same as not thinking. Not making eye contact is not the same as not caring. Not responding quickly is not the same as not understanding.
What we love most
What sets this book apart from every other autism resource on the shelf is the voice. This is not a researcher explaining autism. This is not a parent describing what they observe. This is a thirteen-year-old autistic boy telling you, directly, what it feels like to live inside his mind.
The writing is disarmingly simple. Naoki doesn’t use jargon or theory. He just answers the question, honestly, and lets you sit with it. And because the answers come from a child – not a clinician, not an advocate, not an adult looking back – they carry a kind of immediacy that no academic paper ever could.
We also love how short it is. At around 130 pages, it’s a book you can read in a single sitting. And you probably will, because once you start, you won’t want to stop. Each answer opens a door you didn’t know was there. By the end, you’ll feel like you’ve had a conversation with someone you’ve always wanted to hear from but never could.
And the title. The reason he jumps – it’s because when he’s jumping, he feels like his body and his soul are finally in the same place. He feels free. It’s one of the most beautiful explanations of stimming you’ll ever read.
The bottom line
Every autistic person has a voice.
Not all of them use spoken words to share it.
This book is proof that silence is not emptiness.
That behaviour is communication.
That the children we understand the least
may have the most to teach us.
Listen differently. Presume competence. Never give up.