What Is a Professional Bio?

A professional bio is a concise summary of who you are, what you do, and why it matters. It's used on LinkedIn, personal websites, speaker pages, email signatures, and more. Unlike a resume, a bio is written in narrative form—often first person for social profiles, third person for speaker or author bios. A good professional bio establishes credibility, differentiates you from others, and gives readers a reason to connect or engage. It should answer: What do you do? What makes you good at it? What's your unique angle?