Over the past five years, The MIT Press has curated an impressive series of Game Studies books, including several of great interest to myself and readers of this blog: Appendix N: the Eldritch Roots of Dungeons & Dragons (published by Strange Attractions and distributed by MIT Press), and several by Jon Peterson: The Elusive Shift, Game Wizards, and the forthcoming second edition of Playing at the World. The full list of books in their series can be viewed here.