Characterization is like describing a person in a story or book. It's like when you want to tell your friend who your favorite cartoon character is so you show them what they look like, what kind of clothes they have on, what they like, and what they don't like. In a story, the writer has to do the same thing, but instead of showing pictures, they use words to describe the character, what they do, how they talk or act, and what they think or feel. By doing this, the writer can create a full and interesting character that you can imagine in your mind as you read the story.