The latest volume of Saga sold over four times as many copies as the second title in the Author category, according to information provided by NPD BookScan.

The first volume of RWBY sold nearly twice as many copies as the #2 manga in the U.S. book channel in January, according to information provided by NPD BookScan.

This reporting on the actual sales reported by NPD BookScan on the Top 20 Adult Graphic Novels helps see the relative sales on the bestsellers, and is also instructive when compared to the sales for other graphic novel subcategories in the book channel, or to sales in the comic store channel.

This reporting on the actual sales reported by NPD BookScan on the Top 20 Kids Graphic Novels helps see the relative sales on the bestsellers, and is also instructive when compared to the sales for other graphic novel subcategories in the book channel, or to sales in the comic store channel.

Compare to sales in the comic store channel, or for other graphic novel subcategories in the book channel.

Compare to sales in the comic store channel, or for other graphic novel subcategories in the book channel.

Compare to sales in the comic store channel.

Compare to the book channel sales of the Top 20 Kids Graphic Novels, which are much larger, at least in pieces.

Compare to the book channel sales of the Top 20 Adult Graphic Novels, which are much smaller, at least in pieces.

We were struck by the conservatism in the merchandise mix for graphic novels.

We were struck by the conservatism in the merchandise mix for games.

We visited the Games Workshop Warhammer store in Fitchburg, Wisconsin to check the layout and merchandise displays.