sourcebook

A book consisting of a collection of writings on a particular subject.

Noun

  1. A book consisting of a collection of writings on a particular subject.
  2. A publication intended to supplement the core materials of a roleplaying game.
    • That sourcebook is aimed at players of fighters, rogues, rangers, and warlords, and by design you're not going to find much in that book to appeal to other characters. - 2008, James Wyatt, Bill Slavicsek, Richard Baker,...

Origin

From source + book.

Forms

sourcebooks