Wikipedia has an article about
Yu-Gi-Oh! GX . known in Japan as Yu-Gi-Oh! Duel Monsters GX is the successor and first spinoff series to the Yu-Gi-Oh! anime and manga.
Produced by Nihon Ad Systems Inc. or NAS for short, Yu-Gi-Oh! GX started airing on TV Tokyo in Japan on October 6, 2004. The anime is licensed by 4Kids Entertainment for distribution in the West.
Yu-Gi-Oh! GX . a manga spinoff of the series
written by Naoyuki Kageyama. was published in Shueisha's V Jump magazine in Japan. The manga appears in the United States Shonen Jump magazine.
Yu-Gi-Oh! GX is produced by Nihon Ad Systems, Inc. and directed by Hatsuki Tsuji. Scripts are prepared by an alternating lineup of writers - Shin Yoshida. Jun Maekawa, Akemi Omode, Yasuyuki Suzuki-with music arrangements by Yutaka Minobe. Takuya Hiramitsu is in charge of sound direction, supervised by Y