This document defines theme and discusses how themes are expressed in literary works. It states that a theme is the main idea or underlying meaning of a work and can be either stated or implied. Major themes are important ideas an author returns to, while minor themes appear occasionally. A work's subject is its topic, but its theme makes a statement about that topic. Themes are expressed through how an author makes readers feel, characters' thoughts and conversations, the main character's development, and meaningful story events and actions. Common themes include revenge, love, family, friendship, and acceptance.