I know Guillaume from his YouTube channel, blog and podcast, so I've been waiting to read his book. Must admit that the expectations were more than justified. If you are new to the entrepreneurial field, you'll find a way to go from nothing to success using recommendations from this book. If you're a successful and/or serial entrepreneur, you'll find valuable insights too. I write a book about bootstrapped startups and am interviewing successful founders so that I can comment on the matter. The book goes very well.