Tom Gauld: People tend to think that when you’re an adult you don’t need pictures any more to enjoy a story. But it’s not as though when we’re adults we give up TV and only listen to radio. The relationship between words and pictures is an interesting relationship. A bad picture book obviously just repeats the pictures in words – ‘This is an apple’ – but a good one uses each medium to complement or sophisticate the other: ‘This is not a pipe’. And the more you read picture books, the better you get at reading them, the more you can get out of them. Interestingly, when I’m tired I tend only to read the words in a comic, instead of taking the time to slow down and look at the pictures.