Description from the publisher:

This is the indispensable encyclopedia of fantasy role-playing and also the perfect companion to the referee's 2nd Edition Dungeon Master's Guide. Everything players need is here: how to determine a character's Strength, Wisdom, Charisma, and other abilities; the difference among the various fantasy races, from elves and halflings to dwarves, gnomes, and others; complete rules for character improvement; the most advantageous mapping and combat procedures; and much more, all in this easy-to-use, revised version of the classic role-playing rulebook. With this 2nd Edition, the best-selling role-playing game in history gets even better!