is the name of three X-Men comic book series from Marvel Comics, the first two of which were limited series. The ongoing series began in 2004, with its first run written by Joss Whedon and art by John Cassaday. It is currently written by Warren Ellis with art by Phil Jimenez, who takes over brilliantly from Simone Bianchi's flamboyant artwork from Ellis' first story arc. Thus far it has remained independent of and unaffected by, Marvel Universe cross-overs which Joss Whedon disliked. The ongoing series has been nominated for the Eisner awards and in fact has won several. Issue #31 is the start of Waren Ellis' second story arc, entitled, "Exogenetic."