JoJo's Bizarre Adventure Dictionary (ジョジョの奇妙な冒険大辞典,JoJo no Kimyō na Bōken Daijiten) is the 23rd issue of Capcom's Secret File (シークレットファイル,Shīkuretto Fairu) series. The booklet was released in 1998 and focuses on the development details and production comments for the arcade game JoJo's Venture.
The booklet was sold at game centers across Japan, and at one point it was even being sold on Capcom's official website. Although there were reprints for the other 20 issues of Capcom's Secret File, this issue never received a reprint after its initial print. The reason for this is unknown.
Much of the content in the booklet would later be used in subsequentversions of JoJo's Venture.