Jostein Gaarder was born in Oslo in 1952. A former Professor of Philosophy, he now writes full time.
Following the phenomenal success of Sophie's World - which has been translated into 55 languages and sold over 30 million copies worldwide - ten of his novels have been translated into English, including The Solitaire Mystery, Vita Brevis and The Orange Girl.
He lives in Oslo with his wife, and has two grown-up sons.