Japanese gaming magazines, manuals, etc. for games

How valuable it can be ? Thanks !

Yu-Gi-Oh Duel Monsters 4: Battle of Great Duelist Campaign Walkthrogh Guide
Wonder Project Official Guide Book
Daikaijuu Monogatari Walkthrough
Rogue Galaxy Space Pirate Master Guide
Ultima Online Official Complete Guide
Pro Baseball Spirits 6 Complete Guide
Jikkyou Powerful Pro Baseball 13 Official guide
Suikoden II Official guide
Mario Kart Double Dash Complete Race Guide
Pokemon Diamond Pearl Official Guide book
Yu-Gi-Oh Tag Force 2 Master Tag Duel
Naruto gekitou ninja taisen 3 official walkthrough
Kokumeikan (Tecmo's Deception: Invitation to Darkness) Official Walkthrough Guide
Pokemon Ranger Batonnage Official Complete Guide
Super Robot Wars J Perfect Guide
Wild Arms 3 Walkthrough Guide Book
J.League Pro Soccer '04 Master Guide
Grandia II Official Walkthrough Guide
Dragon Quest monster battle road Ultra Fighter Guide
Ultima Online the second age Support Guide
Kessen III Complete Guide
Naruto gekitou ninja taisen 4 Official Perfect Guide Book
Nobunaga no Yabou. Soutenroku. Complete Guide
Pokemon Diamond Pearl Official Guide book
Jikkyou Powerful Pro Baseball 97 Official walkthrough guide
Pokemon Gold and Silver Official Guide book
Pokemon mystery dungeon special guide book
Wario: Master of Disguise official guide book
Pachislot Hokuto no Ken (Fist of the North Star) Walkthrough
Daikaijuu Monogatari Walkthrough
Bleach: The Blade of Fate Walkthrough
Ridge Racer Revolution Driving Guide
Super Robot Wars R Iron Bible
Monster Farm 4 Official Walkthrough