Sourcebook

noun

Definitions

Noun
  1. 1
    A book consisting of a collection of writings on a particular subject.
  2. 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."

Etymology

From source + book.

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