TOUS LES LIVRES
- X-Com : UFO Defense - The Official Strategy Guide (1994)
- X-Com Apocalypse - The Official Strategy Guide (1997)
- X-Men : Children of the Atom - Prima's Official Strategy Guide (1998)
- X-Men : Mutant Academy 2 - Official Strategy Guide (2001)
- X-Men Legends - Official Strategy Guide (2004)
- X-Men Origins : Wolverine - Official Strategy Guide (2009)
- X-Men vs. Street Fighter - Prima's Official Strategy Guide (1998)
- X-Wing - The Official Strategy Guide (1993)
- X-Wing Alliance - Prima's Official Strategy Guide (1999)
- X-Wing Collector's CD-ROM - The Official Strategy Guide (1995)
- Xena : Warrior Princess - Prima's Official Strategy Guide (1999)
- Xenogears - Official Strategy Guide (1998)
- Xenosaga Episode I - Official Strategy Guide (2003)
- Xenosaga Episode II - Official Strategy Guide (2005)
- Xenosaga Episode III (2006)
- Yoshi's Island : Super Mario World 2 - Player's Guide (1995)
- Yoshi's Story - Prima's Unauthorized Game Secrets (1998)
- You & Wii : Everything You Need to Know (2007)
- You Can Be a Woman Video Game Producer (2006)
- Young Children, Videos and Computer Games - Issues for Teachers and Parents (1997)
- Ys : The Ark of Napishtim - Official Strategy Guide (2005)
- Yu-Gi-Oh ! Capsule Monster Coliseum - Prima Official Strategy Guide (2004)
- Yu-Gi-Oh ! Card Catalog - Prima's Official Strategy Guide (2003)
- Yu-Gi-Oh ! Dark Duel Stories & Forbidden Memories - Prima's Official Strategy Guide (2002)
- Yu-Gi-Oh ! Destiny Board Traveler - Prima Official Game Guide (2004)
- Yu-Gi-Oh ! Duelists of the Roses - Prima's Official Strategy Guide (2003)
- Yu-Gi-Oh ! Reshef of Destruction - Prima's Official Game Guide (2004)
- Yu-Gi-Oh ! The Dawn of Destiny - Prima's Official Strategy Guide (2004)
- Yu-Gi-Oh ! The Eternal Duelist Soul - Prima's Official Strategy Guide (2002)
- Yu-Gi-Oh ! The Sacred Cards - Prima's Official Strategy Guide (2003)
- Yu-Gi-Oh ! Worldwide Edition : Stairway to the Destined Duel - Prima's Official Strategy Guide (2003)
- Yu-Yu Hakusho : Dark Tournament - Prima Official Game Guide (2004)
- Zak McKracken - Hint Book (1988)
- Zap ! Pow ! Boom ! Arcade Games for the VIC 20 (1982)
- Zap ! The Rise and Fall of Atari (1984)
- Zappers : Having Fun Programming and Playing 23 Games for the TI-99/4A (1984)
- Zappers for the Commodore 64 (1984)
- Zen of Assembly Language (1990)
- Zombie Revenge - Prima's Official Strategy Guide (2000)
- Zone of the Enders - Official Strategy Guide (2001)