JoJo's Bizarre Adventure, often shortened to JoJo or JJBA, is a shonen and seinen manga series written and illustrated by Hirohiko Araki. It began in December 1986, following the journeys of the Joestar family members across generations.

JoJo's Bizarre Encyclopedia's goal is to create a comprehensive encyclopedia for all official material related to this ongoing series and Hirohiko Araki's other works, ensuring to keep the information accurate and up to date.