Few books have impacted me quite as much as the first edition of Jon Peterson’s Playing at the World. A 700 page self-published brick of a history on the origins and influences of Dungeons and Dragons was exactly the kind of deep nerd lore that I craved. I devoured it while working on my PhD, and even snuck in a little reference to it on my footnotes. Now long out of print, it was a book I would recommend but with many caveats around people having to really be into this kind of thing specifically. Thankfully, Peterson has seen fit to put together a revised second edition, now available via MIT Press, and Playing at the World has never been so approachable. While a weirdo like me can’t help but miss some of the first edition’s idiosyncrasies, even I must admit that this is altogether a more polished history of the origins of D&D and roleplaying games in general.