The cover of The Catcher in the Rye by J.D. Salinger is a simple yet iconic design. It features a red carousel horse against a black background, symbolizing the protagonist's desire to protect the innocence of childhood. The book is a coming-of-age story that has resonated with generations of readers, exploring themes of alienation, identity, and the loss of innocence. The cover perfectly captures the rebellious and introspective nature of the novel, making it one of the best covers of all time.