This article is about the series of twelve variant covers by Mike Mignola in 2012.
After Hellboy: The Fury was concluded, it was announced that Mike Mignola would return as artist to the ongoing Hellboy stories in Hellboy in Hell. However, this workload would mean he would no longer be able to do as many covers as he had in the past. Aside from the covers for Hellboy in Hell or other Hellboy comics, Mike Mingola will no longer be doing any covers for singles.
As a farewell to covers, the Year of Monsters cover variants were created, with one cover released for every month of the year 2012. These variants feature characters created by Mignola pitted against a famous monster of some sort. The covers have no relation to the story contained within the issue.