Although thick, about 500 pages, it’s an easy read as the chapters are small and each chapter talks about a different subject including a number of interviews with experts on certain subjects. Reading the book, you need to go through a lot of “bulll-shitakes”. As not natively English speaking person, it got a bit fed-up with them in the end. Some of the information (lawyers and patents) is very targeted to the US. All in all en entertaining book which you’ll finish fast.
To get a feel of Guy, see his Hindsight speech. In the book he adds Hindsight 2.0 ;)