Book Blurb Generator

1. Paste your premise. Include the protagonist, their world, the thing that goes wrong and what they stand to lose. A synopsis paragraph works well (up to 1,000 characters).
2. Add a title and genre (optional). The title lets the blurb echo it; the genre sets the tone. A romance blurb sells the relationship, a thriller blurb sells the clock.
3. Generate and edit. You get a two- or three-paragraph description and a cover tagline. Run it again for a different angle, then combine the best lines from each version.

Most bestselling fiction blurbs follow the same four beats, whatever the genre:

• Who and where. Open with the protagonist in their ordinary world, in one or two specific details rather than a summary of their life.
• The disruption. The event that throws that world off balance: the body in the library, the letter, the stranger at the door.
• The stakes. What happens if they fail, made personal. “The fate of the kingdom” is abstract; “her brother hangs at dawn” is not.
• The question. End on the dilemma the reader will buy the book to resolve, never on the resolution.

Nonfiction blurbs swap the story beats for the reader’s problem, the book’s promise and why the author is the person to deliver it. Choose “Nonfiction” as the genre and describe who the book is for.

Write in the present tense and third person, even if the book is in first person; it reads more urgently. Cut every adjective that doesn’t earn its place, and name no more than two or three characters, since readers can’t hold a cast list in a description. Read the first line on its own: on Amazon only the first few lines show before “Read more,” so that line has to work alone.

Keep the promise consistent with your cover and title. If you don’t have a title yet, try the free book title generator using the same premise.

From a premise like “Mara, a cartographer in a city that redraws itself every night, finds her own street missing from the morning map,” a strong blurb opens on Mara and her maps, turns on the missing street, raises the stakes (her family is on it), and closes on her uneasy alliance with the thief who stole it, with a tagline along the lines of “Every night the city forgets. This time it forgot her.”

When the blurb is ready, Anthra can write the book behind it. Its AI agent turns your premise into a beat sheet and outline, drafts each chapter with continuity checks, then adds a cover, chapter art and an audiobook. Read how the agentic book creator works.