Marvel Comics' X-Men #1 was July's best-selling comic book, and their Star Wars: The Old Republic Omnibus Volume 1 was the best-selling graphic novel.

Mutantkind's best and brightest band together to defend the world in Gerry Duggan and Pepe Larraz's X-Men #1 from Marvel Comics, the best-selling comic book of July 2021 through Diamond Comic Distributors.

Marvel Comics' Star Wars: The Old Republic Omnibus Volume 1, collecting the Dark Horse Comics series Star Wars: Knights of the Old Republic by John Jackson Miller and Brian Ching, was July's best-selling graphic novel.