Guides / Pricing and marketing

How to Write an Author Bio That Makes Readers Trust You

A good author bio tells readers, in a few sentences, who you are, why you wrote this book and why they can trust you to deliver it, with one personal detail that makes you memorable. This guide covers what to include for fiction and nonfiction, how long each version should be, templates you can adapt, and how to write a bio when you are just starting out.

Updated October 7, 20264 min read
On this page
  1. What to include
  2. Three lengths to keep ready
  3. First or third person?
  4. Templates you can adapt
  5. Examples
  6. If you have no credentials yet
  7. Common mistakes
  8. Bios for pen names
  9. Where your bio appears
  10. Your author page on BooksOasis
  11. In short
  12. Questions

Readers often check the author before buying, especially for nonfiction and for a new writer. The bio is your chance to answer an unspoken question: why should I spend my time on this person's book? It does not need awards or a famous publisher. It needs relevance, specificity and a human voice.

Lead with relevanceWhy you wrote this book.
Add credibilityExperience, not boasting.
One human detailSomething memorable.
Keep versionsShort, medium and long.

What to include

ElementFictionNonfiction
Who you areName and the kind of stories you writeName and your area of expertise
CredibilityPrevious books, series, genre experience, relevant backgroundProfessional experience, qualifications, results, research
Connection to the bookThe setting, history or theme you know wellWhy you are the right person to teach or tell this
Human detailWhere you live, what inspires you, a quirkA personal touch that softens authority
Next stepSeries, newsletter or websiteWebsite, newsletter or services

Nonfiction bios carry more weight on credibility, because readers are trusting you with advice or facts. Fiction bios can lean more on personality and the world of your books.

Three lengths to keep ready

VersionLengthUse it for
One-liner15 to 30 wordsSocial profiles, guest posts, event listings
Short50 to 100 wordsBook pages, back covers, author pages
Long150 to 300 wordsYour website, press kits, speaking requests

Write the long version first, then cut it down. It is easier to remove detail than to invent it under a word limit.

First or third person?

Third person ("Amina Hassan writes...") is the convention on book pages and back covers and sounds natural to most readers. First person ("I write...") suits your own website and newsletter, where readers expect a direct, personal voice. Choose one per bio and stay consistent.

Templates you can adapt

Fiction

[Name] writes [genre] about [what your stories are about]. [A sentence on previous books or series, or the background that informs your stories.] [Personal detail: where you live and something you love.] [Next step: join the newsletter or start the series.]

Nonfiction

[Name] is a [profession or role] who has spent [years] [doing what the book is about]. [Specific credibility: results, qualifications, clients, research.] [Why you wrote this book and who it helps.] [Personal detail.] [Next step: website, newsletter, services.]

Examples

These examples are fictional, written to show the structure.

Fiction (short)

Daniel Okoro writes atmospheric mysteries set along the Kenyan coast, where he grew up listening to his grandmother's stories about the old trading towns. The Lamu Ledger is the first book in his Harbour Mysteries series. He lives in Mombasa with his wife, two children and a stubborn cat named Inspector.

Nonfiction (short)

Grace Wanjiru has worked as a small business accountant for fifteen years, helping more than two hundred family businesses get their finances under control. She wrote Clear Books, Calm Mind for owners who would rather run their business than fear their spreadsheets. When she is not untangling accounts, she is usually on a hiking trail with her running club.

Both examples connect the author to the book, add credibility without boasting and finish with a human touch.

If you have no credentials yet

Many first-time authors worry that they have nothing to put in a bio. You almost certainly do.

  • Experience: years in a job, a place you know well, a challenge you lived through.
  • Passion: a lifelong interest in the book's subject or genre.
  • Process: the research or journey behind the book.
  • Personality: a specific, memorable detail.

Never invent qualifications, awards or bestseller status. Readers and retailers notice, and false claims can damage trust permanently.

Common mistakes

  • A CV in paragraph form, listing every job since school.
  • Vague claims such as "award-winning" without naming the award.
  • Too much personal detail, or details that do not connect to the book.
  • Clichés such as "has loved reading since she could hold a book".
  • An outdated bio that does not mention your latest book.
  • Inconsistent versions across platforms.

Bios for pen names

If you publish under a pen name, the bio can describe the work and a believable persona without revealing your identity, but it should not invent credentials. For more on managing a pen name, see our guide on publishing under a pen name.

Where your bio appears

  • Your author page on each store.
  • The back cover or inside flap of print editions.
  • The "About the Author" page in the back matter.
  • Your website, newsletter sign-up page and press kit.
  • Guest articles, podcasts and event listings.

Update all versions together when you publish a new book, so readers always see your latest work.

Your author page on BooksOasis

On BooksOasis, readers can see your books together on your author page alongside your series pages, so your bio sits next to everything you have published. Keep it short, relevant and up to date, and let it point readers to the book they should start with.

What BooksOasis does not do

  • It doesn't write your bio for you.
  • Author information must be accurate; listings go through a moderation review.

In short

Lead with what connects you to the book, add credibility through real experience, include one human detail, and point readers to a next step. Keep a one-liner, a short and a long version, use third person on book pages, and never invent credentials.

Questions

Should an author bio be in first or third person?

Third person is traditional for book pages and back covers, and reads well in most places. First person can work on your own website or newsletter, where readers expect a more personal tone.

How long should an author bio be?

Keep a short version of 50 to 100 words for book pages and back covers, and a longer version of 150 to 300 words for your website and press materials.

What if I have no writing credentials?

Focus on what connects you to the book: your experience, interests, profession or the setting you know well. A specific personal detail is often more engaging than a list of awards.

Should I include personal details in my bio?

A small, relevant personal detail helps readers connect, such as where you live or what you do when not writing. Avoid anything you would not want permanently public.

Can I use a different bio for a pen name?

Yes. A pen name can have its own bio. Keep it truthful about the work, avoid inventing credentials, and keep the tone consistent with the books published under that name.

Give readers a reason to follow you

List on BooksOasis with your own author page, from $29.99 a year.
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