In Publishers Weekly Jim Milliot reports on The Hot and Cold Categories of 2014 in the US, looking at the "print book unit sales among adult segments in 2014" ("at outlets that report to Nielsen BookScan").
On the positive side, "Occult/Psychological/Horror" showed the biggest drop among adult fiction categories (-26%). On the other hand, "Graphic Novels" showed the biggest increase (+13%). (That's in 'adult fiction'! Oddly, this isn't even a category in 'juvenile fiction' ....)
The only other adult fiction category with any plus ? "Western".
Amusingly, "Religion" was minus 15% in adult fiction -- but plus 12% in adult non-fiction. (No comment.)
On the positive side, "Occult/Psychological/Horror" showed the biggest drop among adult fiction categories (-26%). On the other hand, "Graphic Novels" showed the biggest increase (+13%). (That's in 'adult fiction'! Oddly, this isn't even a category in 'juvenile fiction' ....)
The only other adult fiction category with any plus ? "Western".
Amusingly, "Religion" was minus 15% in adult fiction -- but plus 12% in adult non-fiction. (No comment.)