Half-Life 2: Raising the Bar - A Behind the Scenes Look: Prima's Official Insider's Guide is a coffee table book written by David Hodgson and published by Prima Games in November 2004, in a hardback and paperback cover, comprising a collection of images chronicling the development of Half-Life, Team Fortress, Day of Defeat, Counter-Strike, Counter-Strike: Source and Half-Life 2. Text includes notes on game design, development, cut concepts, information relating to voice actors and game development. Numerous interviews of the Valve staff members also fill the book.