*Note: The suggestions I made for next year include some categories on this year's card. I did that 1) because I liked those categories, and 2) I want to make sure we have enough to fill a card.
The list thus far
non-ficton
journal/periodic publication
biography/autobiography
script/screenplay
true crime
poetry/play (I combined those two)
horror
a classic
a mystery
fantasy/sci-fi/paranormal/urban fantasy
comic/graphic novel
published before you were born
published the year you were born (from
blind book
one word title
favorite re-read
diverse reads
out of your comfort zone
number or color in the title (combined thos two also)
an animal on the cover