She began working in comics at EC Comics in the 1950s, and by 1959 had started working for Marvel, where she contributed to numerous titles over several decades including The Incredible Hulk and Kull the Conqueror. She was also the co-creator of the character Jessica Drew/Spider-Woman.
Pinup page from Star Wars (1977) 43 by Severin
- Pizzazz 5: Pursuit among the Ruins!
- Pizzazz 7: Caverns of Mystery!
- Pizzazz 9: The Final Fury!
- Pizzazz 10: The Kingdom of Ice!
- Pizzazz 11: The Snow Demons!
- Pizzazz 12: Treachery!
- Pizzazz 13: Death Trap!
- Pizzazz 15: The Ice Worm Cometh!
- Star Wars (1977) 1
- Star Wars (1977) 17
- Way of the Wookiee!
- The Weapons Master!
- The Day after the Death Star!
- Star Wars (Marvel Illustrated Books)
- Ewoks 1
- Ewoks 2
- Droids (1986) 1
- Droids (1986) 6
- Marvel Special Edition Featuring Star Wars 1
- Marvel Special Edition Featuring Star Wars 3
- Marvel Movie Showcase 1
- Star Wars: A Long Time Ago... Volume 1: Doomworld
- Star Wars: Luke Skywalker, Last Hope for the Galaxy
- Star Wars Omnibus: A Long Time Ago.... Volume 1
- Star Wars Omnibus: Droids and Ewoks