As a reminder, in just two days (July 30th), the first volume of the revised edition of Jon Peterson's Playing at the World, subtitled The Invention of Dungeons & Dragons, arrives from MIT Press with an amazing cover by legendary TSR artist Erol Otus. Per the publisher info, this volume "distills the story of how the wargaming clubs and fanzines circulating around the upper Midwest in the 1970s culminated in Gary Gygax and Dave Arneson’s seminal role-playing game, D&D".
You can find it here on Amazon, currently priced at $27.85, and with a pre-order price guarantee:
Playing at the World, 2nd Edition, Volume 1: The Invention of D&D
It will be followed next year (April 8th) by Volume 2: The Three Pillars of Role-Playing Games, which is "a deeper dive into the history of the setting, system, and character of D&D", and appears to correspond to chapters 2-4 of the original edition, which were: 2: Setting - The Medieval Fantasy Genre; 3: System - The Rules of the Game; and 4: Character - Roles and Immersion.
The pre-order page for Volume 2 can be found here:
Playing at the World, 2nd Edition, Volume 2: The Three Pillars of Role-Playing Games
See also my earlier post about the release here, and see the Erol Otus art without the text here.