Long works are novels, non-fiction books, and so on..
Shorter works are novellas and will also include collections of poetry (normal sized one, bigger anthologies would go above) and plays and graphic novels. Their factor will be "3 per book".
Short works will be short stories, essays, individual comics and the like. It will be assumed, partially just for the fun of it, that there are 13 shorter works per book. In those cases where I read an entire collection of short stories, I will list that collection as a whole (and count it by a factor of one).
The goal is to read enough long, long, shorter and short works to equal 150 total books by my count.