The Boy Who Loved Math: The Improbable Life of Paul Erdos by Deborah Heiligman (author) (US edition)

He couldn’t butter his bread but he was a top maths genius – aged four. A life in colour pics: funny, touching and seriously amazing. Some kids don’t fit in. Paul Erdos was one of them. He couldn’t tie his own shoelaces or sit still. The world didn’t seem made for a boy like him. But what could he do? Well: at the age of four, he could ask you when you were born and then calculate the number of seconds you had been alive in his head. Wow. As a grown-up, ‘Uncle Paul’ didn’t hide away in secret. He travelled the whole world, bringing the gift of maths to other people. Find out how the boy who loved numbers to infinity and back learned to make friends – and become the world no. 1.