Book Description: Welcome back to the Sinnoh region where there are even more mysteries and challenges to unlock! We take you back to Sinnoh in the Official Pokémon Platinum Strategy Guide, with detailed walkthroughs, game play tips, and places of interest! Explore the new Battle Frontier, and check out our detailed strategies for beating the new Frontier Brains. A fully-loaded, all-inclusive Pokédex completes this all-in-one strategy guide, with information on moves, locations, and data for all Sinnoh Pokémon. A separate bonus Pokédex includes annotated data on all 492 Pokémon in the National Pokédex.