February is Women in Horror Month. This is a great time to bring your library's horror out for a non-Halloween display. Again, I guarantee you that it will circulate all year.
Be broad and include non-fiction works like true crime if you need to. You can also grab some psychological suspense as there is a lot of crossover fans.
On the sign, I included the URL for the official Women in Horror Month website as well as RA for All - Horror, a great resource for any library worker looking to get more information about horror.
The Horror Writers of America have a great blog with information about diverse authors. Authors' groups are very supportive of libraries and are a wonderful resource.
Mother Horror - Sadie Hartman is a horror reviewer and part owner of Night Worms Horror Book Box subscription service. Check out her Twitter and Instagram for more ideas.
Putting out genres like horror in February when your patrons might be expecting something else will draw their attention. There are so many great horror novels written by women. Use this month to celebrate them.
Don't forget to check out Horror Noire on Shudder, produced by author Tananarive Due.