Margaret Ogilvy is a biography written by Scottish playwright J.M. Barrie about his mother. The book provides a intimate look into Barrie's relationship with his mother and her influence on his life and work. It also reflects on the idea of motherhood and the impact a mother has on her children. The book is a combination of fact and fiction, and Barrie uses his imagination to bring his mother to life in a way that allows readers to understand her better. It is considered one of Barrie's most personal works and provides insight into the Scottish author's background and family life.