Final answer:
Autobiographies delve into an author's entire life, showcasing thematic significance and authenticity, while also providing a unique perspective on a specific period.
Explanation:
Autobiographies provide a comprehensive account of an author's life, focusing on thematic significance and authenticity. Authors may choose to cover their entire life to contextualize their achievements or reveal lesser-known aspects of themselves. The decision to write an autobiography can stem from a desire to form a narrative, exhibit authenticity, or offer a firsthand account of a particular period.
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