冨樫義博
An encyclopedia titled was published by Shueisha on March 4, 2005. It contains extensive character profiles, story summaries, and an exclusive interview with Yoshihiro Togashi. An art book, , was published by Shueisha on April 27, 2005. It is composed of pieces of artwork from the series, including illustrations created for the "kanzenban" edition reprints and an index of print material where each image was first used. Shueisha has also released two volumes of a guide book titled and books based on both films, each containing screenshots organized in manga-style panels. In Japan, various collectibles such as trading figures, plush dolls, and gashapon toys also exist. A collectible card game based on the franchise was released by Movic. In North America, the series saw licensing for apparel from ODM, lines of action figures by IF Labs and Jakks Pacific, a Skannerz electronic toy from Radica Games, and an activities book from Scholastic. Score Entertainment created the "Yu Yu Hakusho Trading Card Game" for release in the United States. An English guidebook to the series titled "Yu Yu Hakusho Uncovered: The Unofficial Guide" was published by Cocoro Books on October 12, 2004.