A biography and a biographical sketch both provide information about a person's life, but they differ in several key ways:
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Length and Depth: A biography typically offers a comprehensive and detailed account of an individual's life, covering significant events, experiences, and contributions in depth. It often spans the subject's entire life and includes substantial analysis. In contrast, a biographical sketch is generally shorter and more concise, focusing on the most important highlights or key aspects of a person’s life without extensive detail.
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Purpose and Focus: The purpose of a biography is usually to provide a thorough understanding of the subject and may include broader themes, historical context, and analytical insights. A biographical sketch, however, often aims to introduce the person and provide a snapshot of their life, typically emphasizing their most notable achievements or characteristics without delving deeply into their background or personal anecdotes.
These differences affect how readers perceive and understand the subject's life and contributions.