The writer has not only researched widely, he has also read extensively. For non-games professionals, the notes themselves are a treasure trove of information and reference sources to follow up on, even if the thought of playing games is anathema to you.
While the font can be maddeningly small at some times, Games As A Service has been written by one of the most knowledgable people in the business. Clark was one of the pioneers of mobile games at BT as well as setting the agenda at operator 3UK before becoming a social games maven.
As somebody who worked in the (mobile) games business for a lot of the Naughties, this book was a quality reminder of how difficult those days were, how far things have come and what the business models of the future are likely to look like.