Judith Blume is an American writer of children's, young adult, and adult fiction. Blume began writing in 1959 and has published more than 26 novels. Among her best-known works are Are You There God? It's Me, Margaret. (1970), Tales of a Fourth Grade Nothing (1972), Deenie (1973), and Blubber (1974). Blume's books have significantly contributed to children's and young adult literature. She was named one of the 100 most influential people in the world by Time magazine in 2023.

Young adult literature (YA) is typically written for readers aged 12 to 18, and includes most of the themes found in adult fiction, such friendship, substance abuse, alcoholism, and sexuality. Stories that focus on the challenges of youth may be further categorized as social or coming-of-age novels.