Gosho Aoyama is a Japanese manga artist best known for his manga series Case Closed. As of 2017, his various manga series had a combined 250 million copies in print worldwide.

Case Closed, also known as Detective Conan , is a Japanese detective manga series written and illustrated by Gosho Aoyama. It has been serialized in Shogakukan's shōnen manga magazine Weekly Shōnen Sunday since January 1994, with its chapters collected in 105 tankōbon volumes as of April 2024. Due to legal problems with the name Detective Conan, the English language releases from Funimation and Viz Media were renamed to Case Closed. The story follows the high school detective Shinichi Kudo, whose body was transformed into that of an elementary school-age child while investigating a mysterious organization. Generally, he solves a multitude of cases by impersonating his childhood best friend's father and various other characters.