Dungeons & Dragons: Xanathar's Guide To Everything

Assembled here for the first time is new information on adventurers of every stripe. In addition, you’ll find and valuable advice for those of nefarious intent who must deal with such meddling do-gooders, including the Xanathar’s personal thoughts on how to dispatch anyone foolish enough to interfere with his business dealings. Alongside observations on “heroes” themselves, the beholder fills the pages of this tome with his personal thoughts on tricks, traps, and even treasures and how they can be put to villainous use.

192 page hard cover.  5th edition.  Wizards of the Coast