Harry Potter and the Philosopher's Stone was JK Rowling's first novel, followed by Harry Potter and the Chamber of Secrets, Harry Potter and the Prisoner of Azkaban, Harry Potter and the Goblet of Fire, and Harry Potter and the Order of the Phoenix as well as two books written specifically for Comic Relief and based on the Harry Potter novels, Fantastic Beasts and where to Find Them and Quidditch through the Ages. The Harry Potter novels have been prize-winning and consistently on the bestseller lists, and have now sold over 250 million copies worldwide.