Expert Entrepreneur

The Most Important Skill of Entrepreneurship

Most startups fail. The number one reason is always the same: they create something that nobody actually wants.

This book exists to help you avoid that trap. It's a practical, step-by-step playbook written by a serial entrepreneur who has spent decades starting companies, failing, succeeding, and teaching others to do the same.

It’s designed to give you the most important entrepreneurial skill you can develop: the ability to validate your ideas with real customers before you commit time, money, or energy to building them.

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Why This Book? Why Now?

The barriers to starting a business have never been lower. You can spin up a website in an hour and design a product with AI tools. But that speed can also be dangerous. It's never been easier to rush ahead without checking whether you're solving the right problem, for the right people, in the right way.

This book is your roadmap to move from "big idea" to real-world evidence.

A short video explaining why most startups fail and how to avoid the trap.

Podcast generated by AI

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From Founder to Professional Entrepreneur

This book provides the frameworks, tools, and mindset to build a business systematically, not by luck.

By the time you finish, you'll know how to:

Spot and shape business ideas that are worth pursuing.
Master the 12Ronnies' Blueprint: The Customer-First Validation Method.
Talk to customers in a way that reveals real insights, not polite compliments.
Test your assumptions quickly and cheaply, before wasting time on the wrong path.
Learn from the pioneers of modern entrepreneurship, including Steve Blank, Eric Ries, and Alex Osterwalder.
Build the confidence to back your ideas with concrete evidence.
Access the toolkits you need, including the Lean Canvas, Validation Funnel, and Customer Interview Templates.

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What Others Are Saying

"This book is the most practical curriculum for idea validation on the market. It moves beyond theory to give students a structured, repeatable process — the '12Ronnies Blueprint' — that instantly separates the hobbyist from the professional founder. We are considering adopting this as the foundation for a 16-week program because it doesn't just teach entrepreneurship; it teaches mastery." Dr Kevin Phillipson
Assistant Professor of Entrepreneurship and Director of the Center for Business Excellence, McMurry University

"In this book, Simon Krystman offers budding entrepreneurs a disciplined framework for creating a new venture. By focusing relentlessly on Idea Validation, he frames entrepreneurship as a repeatable skill that replaces guesswork with evidence and learning from experience." Lord Kamall of Edmonton
Shadow Minister (Health and Social Care), House of Lords

"This book is written without any flannel. It gets to its points directly, succinctly and, most importantly, with entirely pragmatic actions to take. The book will be an invaluable addition to any startup and its founder, helping to navigate what can often become an overwhelming list of things to consider and do." Mark Huxley
Founder, Huxley Advisor, Past Master, The Worshipful Company of Entrepreneurs

"This book gets right to the heart of what separates entrepreneurs who thrive from those who simply hope for the best... It's a clear, practical reminder that becoming an expert entrepreneur isn't about luck or genius; it's about developing repeatable habits that build confidence, evidence and momentum." Alan Wick
Business Coach, Alan Wick Associates

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About Simon Krystman

Simon is an entrepreneur, mentor, and co-founder of 12Ronnies, a venture studio dedicated to helping pre-launch founders turn bold ideas into thriving businesses.

Specialising in idea validation (gathering evidence of a customer need). I used to build businesses, now I build entrepreneurs. I've been launching businesses for over 35 years with varying degrees of success. My main area of expertise is Idea Validation - finding out if an idea has commercial potential.

At 12Ronnies, Simon has built a unique customer-first methodology that teaches founders how to validate ideas, attract early customers, and secure sustainable growth without wasting time or money. His mission is to help founders become professional entrepreneurs who can create opportunities for themselves again and again.

Ready to Become an Expert Entrepreneur?

Stop gambling on one "big idea" and learn the repeatable skill of idea validation, the superpower that separates the amateurs from the experts.

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