Pulp magazines (often referred to as "the pulps") were inexpensive fiction magazines that were published from through late 1970s. The term pulp derives from the cheap wood pulp paper on which the magazines were printed. In contrast, magazines printed on higher-quality paper were called "glossies" or "slicks". The typical pulp magazine had 128 pages; it was 7 inches (18 cm) wide by 10 inches (25 cm) high, and 0.5 inches (1.3 cm) thick, with ragged, untrimmed edges.
The Foundation's Pulp Collection contains many underground erotic pulps, as well as rare mainstream literary works from the middle of the last century.