Pulp magazines are inexpensive fiction magazines published from the late 1800’s through the 1950’s.
Printed on cheap paper, the typical pulp magazine was about 7 inches by 10 inches and 128 pages long……just the right size to fit in a pocket. Because they were published so cheaply, pulps usually had ragged, untrimmed edges. There was little advertising for these cheap reads, so the cover had to do all the attention grabbing. They were most often covered in scantily clad vixens with gravity defying blossoms.
As y’all can see here, even the horror stories benefited from the lure of the fairer sex.
THE CAVENDER DIARY 
Vincent Price must have been a cover model.
We thought that also, Gail.