Judith Blume (née Sussman; born February 12, 1938) 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.