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A biography is a detailed description or account of someone's life. It entails more than basic facts (education, work, relationships, and death), a biography also portrays a subject's experience of these events. like a profile or curriculum vitae (résumé), a biography presents a subject's life story, highlighting various aspects of his or her life, including intimate details of experience, and may include an analysis of a subject's personality.
Biographical works are usually non-fiction, but fiction can also be used to portray a person's life. One in-depth form of biographical coverage is called legacy writing. Biographical works in diverse media—from literature to film—form the genre known as a biography.
An authorized biography is written with the permission, cooperation, and at times, participation of a subject or a subject's heirs. An autobiography is about a life of a subject, written by that subject or sometimes with a collaborator.[1] http://en.wikipedia.org/wiki/Biography