Tabletop: Analog Game Design an E-book available at no cost

I ran across this book from the course reading list in Bernie Dodge's long running course Exploratory Learning Through Educational Simulation & Games, EDTEC 670 at San Diego State. I haven't had time to skim through it yet but it sounds fascinating. It is a free download.

Costikyan, G. & Davidson, D. (2011). Tabletop: Analog Game Design. Feedbooks. 

"In this volume, people of diverse backgrounds talk about tabletop games, game culture, and the intersection of games with learning, theater, and other forms. Some have chosen to write about their design process, others about games they admire, others about the culture of tabletop games and their fans. The results are various and individual, but all cast some light on what is a multivarious and fascinating set of game styles."