20 Best-Selling Children’s Books of All Time


"Green Eggs and Ham"

Green Eggs and Ham
Green Eggs and Ham
Image courtesy of Random House

Author: Dr. Seuss

Copies Sold: 8.1 million


"Green Eggs and Ham" is Dr. Seuss's most popular book, selling more than 8 million copies since 1960. Seuss uses only 50 simple words as Sam-I-Am tries to convince a grumpy sourpuss that green eggs and ham are delightful to eat.