A "bio" is a short description of a person, often highlighting their background, achievements, and interests. It is commonly used in various contexts, such as social media profiles, professional websites, and publications. A well-written bio helps others understand who someone is and what they do. Bios can vary in length and detail, ranging from a few sentences to several paragraphs. They may include information about education, work experience, and personal hobbies. In professional settings, bios often emphasize skills and accomplishments, while personal bios might focus on interests and personality traits.