In simple words this book is " Too accurate to be useful." It just looks like a big book, but only some of it is important. I would say that the authors view on his interaction with celebrities was of more sense and helping than what the celebrities said. In this book they go too deep into the products that celebrities use and too many materialistic things rather than their own ideologies and belief in success. Example: they tell that this particular personality uses this particular brand of tea or something. I mean why does it matter to me. I know this had nothing to do in their success. Tell me things that are important in [general]. so I must say this again that this book has only 10% valuable information worth remembering. Even the author admits it. The 4 hour work week is a much better book. And after reading something like atomic habits which is full of amazing stuff, this book { Tools of titans } truly disappoints us.