A theme is not yet a book. Book Ideas is a book idea generator that turns a theme or genre into five concepts you can actually compare, the way a publishing editor would present them, with an angle, a reader and a reason to exist.
For fiction each premise covers the protagonist, the goal, the conflict and the stakes. For non-fiction it covers the problem, the promise to the reader and the method. The five differ in angle, audience or format, so you choose between real options, not five variations of one idea.
If your theme does not say fiction or non-fiction, you get three novels and two non-fiction books. Comparable published titles appear only when the tool is certain they exist. When a concept clicks, plan it with the eBook Planner or test a scene with the Story Generator.
What you get
- Five book concepts in a numbered list, the working title first
- A one-line hook for each concept, the sentence you would put on the cover
- A premise of three or four sentences built for fiction or non-fiction
- The target readers for every concept
- A mix of angles, audiences and formats, never five versions of the same book
What you fill in
- Theme or genre required
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Say whether you want fiction or non-fiction, and the audience if you have one in mind.
How to use it, step by step
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Write the theme or genre
One line is enough, such as "historical fiction about the silk trade in 18th-century Venice" or "a practical guide to remote work".
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Say fiction or non-fiction, and for whom
Add it to the same field if you know. Leave it open to get three fiction and two non-fiction concepts and see which direction fits.
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Choose language and results
Set the output language and tone. With more than one result, each set of five comes back as a separate option.
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Shortlist and develop
Pick one or two concepts, rewrite the hook in your words, then move to the eBook Planner for a chapter outline.
Example, input and output
Input
- Theme or genre
- The silk trade in 18th-century Venice
Output
Hook: A widow keeps her husband's silk workshop alive by learning the one trade secret he never wrote down.
Premise: When her husband dies in debt, Caterina must deliver a commissioned brocade in ninety days or lose the looms. The only person who knows the dye recipe is the rival who ruined him.
Readers: adult readers of historical fiction with strong female leads
...
5. **Threads of the Republic**
Hook: How a luxury fabric shaped the economy of a city.
Premise: A narrative non-fiction book that follows silk from mulberry farms to the Rialto. Each chapter takes one object or person to explain trade routes, guild rules and fashion.
Readers: general readers of popular history and travelers to Venice
Illustrative example written by the editorial team. Concepts 2 to 4 are omitted here for length.
Tips for better results
- Add a constraint that matters to you, such as a page length, a series or a reading age. Constraints make the concepts more specific.
- Judge each concept by its hook. If you cannot explain the book in that one line, the premise needs more work.
- Before you invest in a title, search for it in online bookstores to see if it is already taken.
Who uses it, and for what
First-time authors
Turn a vague interest into five concrete directions and pick the one with the clearest reader.
Self-publishers
Find a non-fiction angle on your expertise that can become a lead magnet or a paid eBook.
Writing workshops and teachers
Give each student a different premise from the same theme to start an exercise.
Limits and good practice
- It proposes concepts, not outlines or chapters. Use the eBook Planner for structure.
- It does not research the market. Target readers are a reasoned suggestion, not sales or demand data.
- Comparable titles are mentioned only when the tool is certain they exist, so often there are none. Verify any title it names.
- Every set of five concepts uses credits from your plan. See the pricing page for what each plan includes, or create an account and try your own theme.
Frequently asked questions
How do I come up with a good book idea?
Start from a theme you care about, then find the angle, the reader and the conflict or problem that makes it worth a whole book. This tool returns five such concepts for any theme, so you can compare directions before you write.
Does it work for non-fiction books?
Yes. If your theme points to non-fiction, such as a practical guide, each premise covers the reader's problem, the promise of the book and the method it uses. If the theme is ambiguous you get three fiction and two non-fiction concepts.
Are the book titles original?
They are written for your theme and are meant as working titles. The tool cannot check whether another book already uses the same title, so search bookstores and catalogs before you settle on one.
Why are there no comparable titles in some results?
Comparable published books are included only when the tool is certain they exist. Invented comparisons would mislead you in a pitch or a query letter, so when it is not sure, it leaves them out.
What should I do after choosing a concept?
Rewrite the hook in your own words, then plan the structure. For non-fiction, the eBook Planner gives you title options, a chapter outline and an introduction. For fiction, test a key scene with the Story Generator to hear how the premise sounds on the page.
Try it in your workspace
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