6. The Tale of Peter Rabbit
Author: Beatrix Potter
Copies sold: 9.3 million
While the author of this best-seller shares a last name with another infamous child novel character, she has no extraordinary powers, unless you count her knack for imaginative writing. One of the oldest children’s books on this list, the tale of a very naughty Peter Rabbit was published in 1902, and went on to sell millions, especially in the UK, Canada, and the U.S. Another fun fact: the author also took care of all the illustrations in the book.
