I'm not an entrepreneur, but heard the author on a podcast and was interested in this book.

This book is basically a guidebook to assist entrepreneurs handle their life and their business. I personally found the Email GPS section to be of value - as this is how he and his admin share his email inbox and organize it and plow through it.

Other topics include hiring, delegation, letting others do their thing, personal time, hobbies, and more.

It's focused on entrepreneurs and leaders, and maybe not so much for other people. Unless you are in such a role or aspiring to be, the book won't have as much value.