The First Four Years (Little House)

The Sign of the Four (Oxford World's Classics)

Four Stupid Cupids (The Hamlet Chronicles)

Four Major Plays: A Doll's House, Ghosts, Hedda Gabler, the Master Builder (Oxford World's Classics)

The Search for Happiness: Four Levels of Emotional and Spiritual Growth

The Rule of Four

The Elements of Style, Fourth Edition

Tales of a Fourth Grade Nothing

Tales of a Fourth Grade Nothing

The Book of Fours (Buffy the Vampire Slayer)