3. The Catcher in the Rye, J.D. Salinger, 1951

Salinger’s life masterpiece is frequently removed from classrooms and school libraries because it is “obscene,” “blasphemous,” “negative,” “foul,” and “undermines morality.”

4. Fahrenheit 451, Ray Bradbury, 1953

According to Banned Books Week, rather than ban the book about book-banning outright, Venado Middle school in Irvine, Calif. used an expurgated version of the text in which all the “hells” and “damns” were blacked out. Other complaints have said the book went against many religious beliefs.