<human>:  Who was the author of the book, ‘1936: The year that changed the world’?
<bot>: The author of the book 1936: The year that changed the world is a man named David McCullough. McCullough is a well-known author who has written many books about American history. He is best known for his biography of John Adams, which was a New York Times bestseller and won the Pulitzer Prize for Biography or Autobiography.