Green Eggs and Ham
Green Eggs and Ham is a book by Dr. Seuss.  It was first published in 1960. Publishers Weekly says that it had sold fourth-most copies of any children's book ever as of 2001. In this story, Sam-I-Am pesters Guy-Am-I to eat green eggs and ham. However, Guy refuses, insisting that he does not like them until the end. It received an animated adaption in 1973.