Sorceress or Witch? is primarily a literary study highlighting the thematic content of Icelandic literature as it compares with the legal, literary, and historical Germanic sources of early medieval Europe. The text discusses the characteristics of female witches: the seeress, the sorceress, witches and animals, the lascivious witch, and the cannibal woman. It is a kind of case study on how the change in the medieval religious Weltanschauung (from pagan to Christian) affected the role of women and magic. The book also includes 40 illustrations.