As the title goes, I'm looking for a book on the items released for G1, including the Japanese ones, from the Headmasters well into the Victory or Zone series. I don't know if a price guide exists as well (they would probably be too outdated and too low compared to ebay's prices now). I'm just looking to see what was ever released in the G1-era. I'm guessing some of the G1 books about Takara's products come to mind, since I don't think there are many books that have documented or researched the Japanese releases. Thanks for your help!