Marvel turns another year older! This August 31, Marvel will celebrate its 81st birthday with fans everywhere and a cavalcade of new comics, collectibles, apparel, games, videos, and more. To kick off the celebration, Marvel revealed a stunning original commemorative piece of art by legendary comic book artist Ron Lim and colorist Israel Silva, which comic book retailers will receive as a surprise variant for MILES MORALES: SPIDER-MAN #18 on sale that week!