Publisher's blurb:
We gathered some of the most respected, most creative, and possibly weirdest minds of the old school roleplaying scene and compiled some of their best work to make this thick magazine. We made KNOCK! the messy, stuffed to the gills bric-à-brac we wanted. The book that earns its place on the easy-to-reach part of your gaming shelves.
It has everything you’d want from an old school slash adventure gaming publication: articles about the history of Dungeons & Dragons, reflections about genre and gameplay, some clever rules, a bunch of maps, tons of random tables and lists, 7 new classes, 7 new monsters, and 3 complete adventures.