If you enjoy math and you write novels, it's very rare that you'll get a chance to put your math into a novel. I leapt at the chance.

If one book's done this well, you want to write another one that does just as well. There's that horror of the second novel that doesn't match up.

Everyone has learning difficulties, because learning to speak French or understanding relativity is difficult.

There was a time in my life when I was going in and out of houses that were extraordinarily different - from a working-class terrace in Northampton to the homes of friends who were really very wealthy. It was quite an odd position to be in, I realise looking back, and quite a nice one.

Curious Incident is not a book about asperger's....if anything it's a novel about difference, about being an outsider, about seeing the world in a surprising and revealing way. The book is not specifically about any specific disorder.

When I was writing for children, I was writing genre fiction. It was like making a good chair. However beautiful it looked, it needed four legs of the same length, it had to be the right height and it had to be comfortable.

And when you look at the sky you know you are looking at stars which are hundreds and thousands of light-years away from you. And some of the stars don’t even exist anymore because their light has taken so long to get to us that they are already dead, or they have exploded and collapsed into red dwarfs. And that makes you seem very small, and if you have difficult things in you life it is nice to think that they are what is called negligible, which means they are so small you don’t have to take them into account when you are calculating something.