Okay this book is a bit of a difficult one to review.
First of all its not a dozen lessons. So misleading title.
Also its not really that useable for most people around the world, but rather a book that focused completely on entrepreneurs in silicon valley and the perspective on venture capitalists.
Which just doesn't work for everyone or anywhere.

To that comes that the "lessons" are made up from investment philosophies and profiles and inveterivews of different people. Which isn't really a real lesson, now is it? I can look up peoples profiles on the internet if i am interested in how they are build their wealth.

All in all i expected more from the book. I wanted actual helpful tips and ideas. I wanted actual lessons. I wanted to learn. I wanted to get to know information that are useful on a broader scale.

Its not a bad book. Its just overly useful for anyone outside of the USA. at least in my option.

A DOZEN LESSONS FOR ENTREPRENEURS written by Tren Griffin and published by Columbia Business School provides a more modern day take on Silicon Valley and venture capitalists, focusing on key attributes of successful start-ups and business ventures. Griffin has interviewed 35 entrepreneurs (such as Marc Andreessen and Peter Thiel) and then reviewed their responses for patterns, with factors like markets, mission, and recruiting appearing most often. Griffin summarizes by saying, "perhaps the playbook of industry disruption requires being naïve enough at the start to question basic assumptions and then staying alive long enough to employ skills that are unique and advantageous in the industry you seek to change." Griffin has made an effort to include 6 women (of 35 total) amongst those being profiled, well above the industry proportion at senior levels. In addition, he writes in an engaging manner such as when discussing Rich Barton (Expedia, Glassdoor and Zillow) and stressing that acquiring skills may require a path that is nonlinear; "the 'jungle gym' replaces the 'ladder' as the metaphor for a career." I have already recommended this book to our business department (there is a nice glossary of terms, too) and I know that the Entrepreneur class is anxious to see the copy we have ordered.