An autobiography is the story of a person's life written by themselves. A biography is the story of a person's life written by someone else.
Autobiographies are books or written accounts that are based on the life experiences of the author. They are usually written in the first person and provide a detailed and personal insight into the author's life, including their upbringing, achievements, challenges, and significant events. Autobiographies allow readers to understand and connect with the author on a deeper level.