Latter Days is the tenth and final novel in Canadian cartoonist Dave Sim's Cerebus comic book series. It is made up of issues #266-300 of Cerebus. It was collected as the 15th and 16th "phonebook" volumes, as Latter Days (#266-288, November 2003) and The Last Day (#289-300, June 2004). The novel concludes Cerebus life, as Sim had long announced it would, and is generally considered the most difficult and problematic of the Cerebus novels.