The JoJo's Bizarre Adventure series celebrated its 30th anniversary of publication on January 1, 2017. The 30th anniversary is an ongoing promoted milestone for the series which results in the occurrence of several events as well as the release of promotional material.
JoJo Festival in Morioh, S-city was a special event held in Sendai, Japan from August 12, 2017 to September 10, 2017. The festival featured various Diamond is Unbreakable-styled attractions and shops spread throughout the city.
The Hirohiko Araki JoJo Exhibition 2017 was a special event held in Sendai, Japan during the JoJo Festival in Morioh, S-city event, where JoJo's Bizarre Adventure creator, Hirohiko Araki, presented various works of art to celebrate the 30th anniversary of JoJo's Bizarre Adventure.
Hirohiko Araki JoJo Exhibition: Ripples of Adventure was a special event held at 'The National Art Center, Tokyo', Japan during the summer of 2018. Despite taking place the following year, the exhibition was marketed as the final project to celebrate JoJo's Bizarre Adventure's 30th Anniversary and featured the "largest display in the history of the JoJo manga series." A second exhibition was held from November 25, 2018 to January 14, 2019 at the 'Osaka Culturarium at Tempozan'.