Green Eggs and Ham is a best-selling and critically acclaimed book by Dr. Seuss (the pen name of Theodor Seuss Geisel), first published on August 12, 1960. As of 2001, according to Publishers Weekly, it was the fourth best-selling English-language children’s book of all time.

Green Eggs and Ham is unique in that it was written on a bet. Dr. Seuss' editor, Bennett Cerf, bet him that he couldn’t write a book using only 50 words.