The document discusses two novels, 1984 by George Orwell and The Catcher in the Rye by J.D. Salinger. 1984 has been challenged for its political and sexual content but remains used in high school and college curricula. The themes of 1984 include fear, hate, nationalism, oppression, and control. The Catcher in the Rye has also been challenged and banned in some school districts due to its content. It explores themes of alienation, growing up, and the phoniness of the adult world through the eyes of protagonist Holden Caulfield.