JoJo's Bizarre Adventure (ジョジョの奇妙な冒険, Jojo no Kimyō na Bōken?) is a Japanese manga written and illustrated by Hirohiko Araki. It is famous for its original art style, intricate plot, and numerous Western rock music references. Every main character's name in each part can be read as JoJo. The manga, published by Shueisha in their magazine Weekly Shōnen Jump, started in 1987 and went on to 2004. The current story arc was initially published in Weekly Shōnen Jump, but was moved to Ultra Jump in 2005. It is currently Shōnen Jump's second longest running manga with 94 volumes and counting (only Kochi-Kame, with 150+ volumes, has more.) It is however, the longest manga not to have a TV adaptation.
The manga is published in English by Viz Media, starting from the third story arc. Nine volumes have been published. Originally published bimonthly, it has been reduced to a quarterly release.