Zatch Bell!, known in Japan as Konjiki no Gash!! (manga) and Konjiki no Gash Bell!! (anime) (金色のガッシュベル!!, Konjiki no Gasshu Beru!!?, lit. "Golden Gash Bell!!), is a shōnen manga series by Makoto Raiku published in Shogakukan's Shōnen Sunday, which has been adapted as an anime TV series by Toei Animation. Many of the Zatch Bell! graphic novels have short comics inside titled Zatch & Suzy (Gash and Suzume in the original versions). In 2003, the manga won the Shogakukan Manga Award for shōnen.

Source: Wikipedia