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First Book ai

Use this AI ghostwriter to write a book manuscript in less than 24 hours

One-time payment. Lifetime deal.

You want to write your first book, but spending years locked away like a tortured artist isn’t your vibe. (“No to the cabin in the woods. Yes to an instant classic from the couch.”)

Working on a manuscript can take years of research, planning, writing—and that’s all before you start editing for publication.

Wish there was a trusted AI ghostwriting tool that could guide you through the entire process to whip up a book in less than 24 hours?

Say hello to First Book ai.

TL;DR

too long didn't read
Answer targeted questions to generate a detailed chapter-by-chapter outline for your book
Leverage AI to turn your ideas into a ready-to-publish manuscript in just 24 hours

At-a-glance

Allows Existing Accounts

Overview

First Book ai is an AI ghostwriter that can convert your ideas into a business book ready to share in less than 24 hours.

Get a detailed book outline

Getting started with First Book ai is a breeze! Simply answer a few questions and then let the AI bring your ideas to life.

  • Create a professional, personalized book that’s tailored to your vision
  • Generate a detailed book outline that reflects the purpose and context of your idea

Book outline builder

Just answer a few straightforward questions to get a complete outline for your book.

Focus on the details

Taking cues from your outline, this tool asks targeted questions to develop a detailed blueprint of your book project.

  • Get a chapter-by-chapter breakdown in just a few minutes
  • Rewrite and refine your book until you’re happy with the direction

Book online builder

Tell AI the purpose, audience, core concept, and scope of your work to receive a clear outline.

Finish your book in hours, not years

Whether you’re trying to grow your brand or collect more leads, First Book ai makes it easy to write books that boost your credibility and conversions.

  • Get a professional, ready-to-publish draft of your project that you can send out or self-publish
  • Download drafts as Google Docs, Word docs, and PDFs

Finished book

Download a digital copy of your book and share it with the world.

Work smarter with guided support

  • Get support throughout the writing process to finally beat writer’s block
  • Follow intuitive, step-by-step instructions to identify your project’s title, purpose, and target audience

Plus, you’ll be able to access all your book projects from one user-friendly dashboard to stay organized.

Book projects

View and manage all your book projects in one place.

In less than 24 hours, First Book ai helps you write a high-quality book to attract new clients, boost credibility, and become a thought leader in your industry.

Write your first book by tomorrow.

Get First Book ai at its lowest price!

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30 day money-back guarantee. Try it out for 1 month to make sure it's right for you!

Deal terms and conditions: Lifetime access to First Book ai. All future Custom AppSumo Plan updates. If Plan name changes, deal will be mapped to the new Plan name with all accompanying updates. No codes, no stacking—just choose the plan that’s right for you. You must activate your license within 30 days of purchase. Ability to upgrade between 4 license tiers while the deal is available. Ability to downgrade between 4 license tiers within 30 days of purchase. Available for new First Book ai users and returning AppSumo purchasers. Previous AppSumo customers who purchased First Book ai can upgrade their license to increase their feature limits.
First Book ai

First Book ai

Firstbook.ai
FoundedFounded
January 2024
HeadquartersHeadquarters
Copenhagen, Denmark
Company sizeCompany size
1-10 employees
Product stageProduct stage
Startup
Financial stageFinancial stage
Bootstrapped
Verified by Persona

In addition to our internal vetting process, we use Persona, to validate each company and founder's identity. Learn more

Updates from First Book ai

Update from the founder March 2025

Posted Feb 18, 2025

A message from First Book ai

Posted Oct 24, 2024

Company and product FAQs

Posted Oct 24, 2024

Questions
Reviews

Questions & Reviews

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Showing 5 of 159 questions

Q: Dutch?

I read about expanding to more languages. Is Dutch on your list? Ans when yes, what is the ETA?

arjan51Apr 12, 2025
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Founder Team
Casper_FirstBook.ai

Casper_FirstBook.ai

Apr 15, 2025

A: Hi there!

Yes, Dutch is also on the list. In our current pipeline, it's set for Q3/Q4 this year. However, we have a number of updates set for implementation so we can't guarantee a specific date - but we're working as fast as possible using all the great feedback we get :)

Best regards,

Casper

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Q: Good deal but chapter wise does not feel right

8 main chapters and 24 total chapters feel little less with the possibilities someone can have in mind. It can be increased to 32 chapters as you offer on your site.

110057454717141491674PLUSMar 25, 2025
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Founder Team
Casper_FirstBook.ai

Casper_FirstBook.ai

Mar 25, 2025

A: Great question — happy to clarify!

Each book created with First Book ai includes 8 main chapters and up to 32 total chapters, which means each main chapter can have up to 3 subchapters. That full structure is already available in all AppSumo tiers — so you’re getting the same as what we offer on our site.

We’ve found this format works really well for most non-fiction business books, keeping things clear, focused, and high-quality. But we totally get that some users want more flexibility, and it’s great feedback as we continue to improve.

Thanks for pointing it out!

// Casper

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Q: At tier 4, if I do not clear 10 books ....

At tier 4, if I do not clear 10 books for the month, will the remainder transfer to new month?

lexieelinPLUSApr 12, 2025
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Q: Supercharged

If I get tier 4 will I still need to pay for the “supercharged” feature?

lexieelinPLUSApr 9, 2025
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Founder Team
Casper_FirstBook.ai

Casper_FirstBook.ai

Apr 10, 2025

A: Hi there, no there’s no need for that :)

Best regards,

Casper

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Q: Adding personal intervention points - see SEOpital

This is a great app .. but the weak point is the flow. It would be really helpful to be able to add personalisation beyond writing an intro and anecdotes at the beginning. To add personal elements or preferences to chapters or even section would be very helpful. The best example is a blog writing tool on here called SEOPital (not easy to say or write) .. but the flow is very powerful. I would recommend checkout their main video. These more detailed points of interaction will make a big difference - you know more as you go through the process - but at the moment you just have to wait to see what come out.

Just to re-iterate, already a great app :)

christian814PLUSApr 9, 2025
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Founder Team
Lucas_FirstBook.ai

Lucas_FirstBook.ai

Apr 9, 2025

A: Thanks so much for the thoughtful feedback and for the kind words! Really appreciate it 😊

You're absolutely right: adding more opportunities to personalize the content as you go through the process (beyond just the intro and anecdotes) would make a big difference.

We’re currently working on a more interactive experience with the outline, where you’ll be able to engage more deeply - quite similar to the flow like the one in SEOpital. The goal is to let you guide the content at the chapter and section level before generation, so it feels much more like a collaboration than a handoff.

More to come soon and thanks again for the great suggestion!

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