John Cassaday began his professional career with Negative Burn. It wasn’t until he showed his portfolio to Mark Waid at San Diego Comic Con that he began receiving job offers from Dark Horse, DC, and Marvel. He eventually collaborated with Joss Whedon on "Astonishing X-Men" which led to more work and even directing an episode of Whedon’s television show, "Dollhouse." Most recently he helped relaunch the successful "Star Wars" comic franchise alongside Jason Aaron for Marvel Comics.
Born in Caracas Venezuela, Giovanni attended the Caracas institute of Design to study Illustration and also took sculpting classes at Centro Art with Illustrator and sculptor Jesus Pastore. After graduating from the Kubert School in 2010, Giovanni began working for Tell-A-Graphics doing projects for PS Magazine under the great Joe Kubert and as a background artist for various artists in the industry. His work has been published by Marvel (X-men Blue, X-men Gold), Dynamite entertainment (Pathfinder-Tarzan, John Wick, James Bond), BOOM! studios (Eternal), Darkhorse presents ( The White Suits. He has also worked for a successful kickstarter project called Bleedback. He has been teaching at the Kubert school since 2012.