Dr Yuval Noah Harari has a PhD in History from the University of Oxford and now lectures at the Hebrew University of Jerusalem, specialising in World History. Sapiens: A Brief History of Humankind has become an international phenomenon attracting a legion of fans from Bill Gates and Barack Obama to Chris Evans and Jarvis Cocker, and is published in over 45 languages worldwide. It was a Sunday Times Number One bestseller and was in the Top Ten for over nine months in paperback. His follow-up to Sapiens , Homo Deus: A Brief History of Tomorrow was also a Top Ten Bestseller and was described by the Guardian as 'even more readable, even more important, than his excellent Sapiens '.