Don’t Judge a Book by its Cover

Interesting fact about Don’t Judge a Book by its Cover

The phrase is thought to have originated in the 1860 novel The Mill on the Floss by George Eliot. In the novel, the character Mr. Tulliver uses the phrase when discussing Daniel Defoe's The History of the Devil, saying how it was beautifully bound. The phrase was popularized when it appeared in the 1946 murder mystery, Murder in the Glass Room, by Lester Fuller and Edwin Rolfe: “You can never tell a book by its cover.”