The book

How to Build a Business in 24 Hours

From Idea to Market in 12 Moves

In 24 focused hours, you can move from an idea in your head to a business foundation ready to face the market. The book gives you the complete 12-Move sequence, the decision framework and the work that gets you there.

Publishing October 26, 2026

How to Build a Business in 24 Hours: From Idea to Market in 12 Moves by Christopher L Penn.

What this book does

Stop thinking about the business. Start building it.

Most people do not need another hundred pages of entrepreneurship theory. They need to know what to do next, what to ignore and when to stop planning and get in front of the market.

The book organizes that work into 12 practical Moves and a total budget of 24 focused working hours. You decide how quickly to invest those hours. The sequence is designed to keep you moving instead of disappearing into research, branding, paperwork or perfectionism.

The finish line is not guaranteed revenue or overnight success. It is a business foundation ready to face the market and learn from what happens next.

A quick look inside

You have an idea. Now build it.

Most businesses begin the same way. With a thought. Maybe you have been thinking about starting something for years. Maybe the idea came to you last week. Then the questions start. Is the idea any good? Who would buy from me? What should I do first? How do I know when I am ready?

That is what this book is designed to change. In 24 focused working hours, the goal is to replace the blank page with a deliberate sequence of decisions that moves the idea closer to the market.

You do not need to know everything. You need the next answer.

What you will learn

How to think like a builder instead of a spectator.

How to stop treating every unanswered question like a reason to wait.

How to separate useful work from activity that only feels productive.

How to use customer and market evidence to make better decisions.

How to know when it is time to stop polishing and move forward.

Why it is different

Action over theory.

Twenty-four focused working hours, not a vague someday plan.

A defined sequence instead of a pile of disconnected business advice.

AI where it helps, with judgment and customer conversations where they matter.

A real-world Build Along so you can see the thinking applied, not just described.

We control the work. The market controls the answer.

Inside the book

The complete 12-Move method stays in the book.

The book includes the exact sequence, time budget, decision questions, exercises, troubleshooting guidance and the points where you stop thinking and move to the next piece of work.

RepVise is used as the running Build Along example to show how I would apply the method to a real business today. It is there to make the thinking visible, not to suggest RepVise itself was literally conceived and proven in 24 hours.

I am giving you enough here to understand the promise and the philosophy. The playbook itself is what the book is for.

Free with the book

The 24 Hour Business Builder Companion Guide

Worksheets, checklists, calculators, AI prompts and outreach templates designed to help you do the work alongside the book.

BusinessIn24Hours.com/CompanionGuide

Advance reviewers wanted

Want to read it before publication?

I am selecting early readers who want to put the method to work and give honest feedback before the October 26 release. If you have a business idea you have been thinking about, this is exactly who I want to hear from.