How do I write an author bio for a nonfiction proposal?
- A proposal bio argues authority and platform, not biography.
- Lead with what makes you credible on this specific topic.
- Quantify platform: audience size, reach, media, speaking.
- It answers "why you, and can you help sell it?"
- It differs from a fiction query bio, where platform matters less.
Write a nonfiction proposal bio that makes two arguments: that you have the authority to write this book, and that you have a platform to help sell it. Lead with the credentials, experience, or expertise that make you credible on the topic, then quantify your reach — audience size, media presence, speaking, relevant affiliations. It is a focused case for you as this book's author, not a general life summary.
Chapter i·Why it matters
In nonfiction, the author is part of the product: publishers buy partly on whether you can reach readers and lend authority to the subject. A bio that reads like a generic about-me wastes that opportunity, while one that establishes expertise and a quantified platform directly supports the sale. Because platform can make or break a nonfiction deal, the proposal bio is a strategic document, not a formality.
Chapter ii·What to include
- Credentials or experience specific to the topic.
- A quantified platform: audience, reach, media, speaking.
- Relevant affiliations and prior publications.
- A focus on authority and sales ability over biography.
- Concrete numbers wherever possible.
- A tailored fit to this book's subject.
Chapter iii·Example
For a book on personal finance, an author's proposal bio leads with her decade as a financial planner and her CFP credential, then quantifies her platform: a 40,000-subscriber newsletter, regular podcast appearances, and a column. It makes the case that she is both qualified to write the book and able to sell it — exactly what a publisher weighs.
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