Sales of comics and graphic novels to comic stores were down 1.1% vs. 2011, but were up when the fact that November 2011 was a five week month and November 2012 was a four week month is taken into account.  Year over year comic sales were up 3.55%; graphic novel sales were down 10.86% to make up the slight decline (without accounting for the difference in weeks) over-all.
Year to date sales are still up 14.63% over 2011, with almost identical growth in both the comics and graphic novel portions of the market.
Dollar Market Share--November 2012
Marvel led in Market share, with 34% vs. DC’s 30%, driven primarily by Marvel NOW! books.  Marvel had eight of the top ten comic titles in November, led by All New X-Men #1 in the top slot.  Batman was #2, but the next six titles were all Marvel NOW! titles (Captain America, Deadpool, Indestructible Hulk, Iron Man, Fantastic Four, Uncanny Avengers), followed by Justice League and Thor: God of Thunder.
The Walking Dead Vol. 17 TP was the top graphic novel title in November.  The TV series was drawing around 10 million viewers an episode that month, which certainly helped drive sales.
Three of the top five graphic novel titles were from Vertigo, demonstrating the continuing relevance of the imprint as founding editor Karen Berger prepares to depart (see "Karen Berger Leaving Vertigo").  BOOM! Studios had a big hit with its first Adventure Time Vol. 1 TP collection, which came in at #3.

For an overview and analysis of comic sales in November, see "Marvel NOW! Titles Dominate November Sales."
For our estimates of actual sales by Diamond U.S. from comic specialty stores on comic books shipped during November, see "Top 300 Comics Actual--November 2012."

For our estimates of actual sales by Diamond U.S. from comic specialty stores on graphic novels shipped during November, see "Top 300 Graphic Novels Actual--November 2012."

For our estimates of actual sales by Diamond U.S. from comic specialty stores on comic books shipped during October, see "Top 300 Comics Actual--October 2012."

For our estimates of actual sales by Diamond U.S. from comic specialty stores on graphic novels shipped during October, see "Top 300 Graphic Novels Actual--October 2012."

For an overview and analysis of the best-selling comics and graphic novels in October, see "'Uncanny Avengers' Debuts on Top."  For an analysis of the dollar trends in October, see "Graphic Novels Up 53.9% in October."

For our index to our reports on the top comic and graphic novel preorders for January 2000 through November 2012, see "ICv2's Top 300 Comics and Top 300 GNs Index."