I was slightly worried when I first opened Stu Horvath’s Monsters, Aliens, and Holes in the Ground (Monsters from here) that what I had gotten all excited for was essentially an encyclopedia. Not that the existence of an encyclopedia of tabletop RPGs would be a bad thing, but they tend to be incredibly dry reading and I wasn’t excited to tackle one from cover to cover. Thankfully, while the format resembles an encyclopedia the contents are distinctly their own thing. The feeling that Monsters most closely evokes is that of having been invited into the basement of a genial but intense RPG aficionado to be walked through his collection one item at a time. The book oozes a sense of familiarity and enthusiasm that make coverage of even the driest, or most bizarre, RPG supplements a fascinating trip down a branch of the hobby’s history.