 Its collected volumes have sold over 160 million copies in Japan, and are estimated to have sold 250–300 million copies worldwide, making it the second or third best-selling manga series.Regarded as one of the most influential manga series, "Dragon Ball" has inspired artists including Eiichiro Oda ("One Piece"), Masashi Kishimoto ("Naruto") and Tite Kubo ("Bleach").Critical reception to the series has been mostly positive.