Paul's books cover a wide range of subjects, from whether the Romans ate crisps to how to build the world's best skatepark, but he writes mostly about sport.

Whether you are interested in swimming or cycling, snowboarding, surfing or another sport, Paul has probably written something that will inspire you to get out and give it a try.

Paul writes in a shack by the beach, which he shares with his one-eyed surf dog, Daisy.

Clare Elsom is a children's illustrator and author. She is the creator of young fiction series Horace & Harriet, a highly illustrated series published by Oxford University Press.

Clare has also illustrated dozens of popular children's books, including the best-selling Flying Fergus series written by Olympic champion Sir Chris Hoy, and Joanna Nadin. Clare Elsom is based in Devon, UK.