These are guidebooks that include game play information and plenty of visuals. The first two are OOP (out of print) but can be found for sale on eBay and Yahoo Japan Auctions (neither are cheap though since they are also considered collectors items)
Dream C Club Perfect Guide - this is the official guidebook for the Xbox 360 version of the game
Dream C Club Zero Perfect Guide - this is the official guidebook for the Xbox 360 version of the game
Dream C Club Gogo Graphical Perfect Guide - this is the official guidebook for DCC Gogo