From Back Cover: This book is a reference for both players and referees. It includes essays on the Imperium and other interstellar empires, descriptions of starships and vehicles in common use throughout known space, lists of equipment available on the open market and its prices, maps, and other information valuable to players and referees alike. This book is part of a three-book set which provides the basic rules and background for playing the game. User Summary: Part of the MegaTraveller box set.