<P> An encyclopedia titled Official Yū Yū Hakusho Who's Who Underworld Character Book (幽 ☆ 遊 ☆ 白書 公式 キャラクターズ ブック 霊界 紳士録, Yū Yū Hakusho Koushiki Kyarakutāzubukku Reikai Shinshiroku) 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, Yu Yu Hakusho Illustrations (幽 ☆ 遊 ☆ 白書 画集, Yū Yū Hakusho Gashū), 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 Yū Yū Hakusho Perfect File (幽 ☆ 遊 ☆ 白書 パーフェクト ファイル, Yū Yū Hakusho Pāfekutofairu) and books based on both films, each containing screenshots organized in manga - style panels . In Japan, various collectables such as trading figures, plush dolls, and gashapon toys also exist . A collectable 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 . </P> <P> Yu Yu Hakusho has sold more than 50 million copies in Japan alone, making it one of Weekly Shonen Jump's best - selling manga series . Patricia Duffield, a columnist for Animerica Extra, acknowledged the manga as "one of the kings of popularity in the mid-1990s" in the region where it saw mass availability from large bookstore chains to small train station kiosks . Yu Yu Hakusho earned Yoshihiro Togashi the Shogakukan Manga Award for shōnen in 1993 . Towards the end of the series' run, Togashi was publicly criticized for not meeting chapter deadlines and for lower quality art . </P> <P> In North America, several volumes of the manga have ranked within the weekly Nielsen BookScan graphic novels list, including volume five at both sixth and ninth in October 2004, volume six at sixth in February 2005, and volume seven at seventh in June 2005 . In 2004, the Yu Yu Hakusho manga serialization sparked a controversy when a Florida grade school teacher issued a complaint about material found in an issue of the American Shonen Jump magazine purchased by a fifth - grade student at a Scholastic Book Fair . The complaint centered around portions of the manga containing violence, mild profanity, a character wearing a swastika, and another character smoking a cigarette . About 18,000 copies of the publication (out of 120,000) were returned from the fairs as a result of the matter . A Viz spokesperson defended the manga, clarifying that it is intended for older teens and that the alleged swastika is actually a Buddhist manji . </P> <P> The Yu Yu Hakusho manga publication has received mixed criticism by reviewers in English - speaking regions . Martin Ouellette of the Canadian Protoculture Addicts compared the progression of the series to Dragon Ball Z and stated, "Togashi's art, while simple, is extremely efficient and the story is really fun ." An older article by the same reviewer disagreed with the notion that Yu Yu Hakusho was similar to Dragon Ball, stating that the former franchise has better developed characters, more interesting action sequences, and more humor . Eduardo M. Chavez of Mania.com enjoyed the manga's artwork and found that the supporting characters tend to be illustrated with more detail than the main characters . He praised Lillian Olsen's English translation, but disliked Viz's use of overlaying English words to translate the expression of sound effects . In later volumes Chavez was dismayed by the transition of the manga from the early detective cases to the Dark Tournament arc . He asserted, "Seeing fight, after fight, after fight gets boring and this seriously is only the start of this trend ." Dan Polley, a staff reviewer of Manga Life, gave an average grade to the fifth volume, which entails Yusuke's battle with Suzaku, the leader of the Four Beasts . Although he found some the battle sequences to be engaging, Polley judged the chapters as lacking in characterization and development overall . Polley also discounted the manga's comedy, considering the "bit gags or fairly lame jokes" to be "too much" at times . </P>

Does yu yu hakusho have a good ending