"Roleplaying in Andre Norton's Witch World"
From the back cover:
"The Witch World is a world of wonder and magic, of the epic struggle between Light and Shadow, good and evil. This ancient land hold both beauty ... and horror. Magic and technology co-exist and both a re used in an ancient war."
Covers the history and geography of Witch Worlds, as well as characters, tools and weapons, and magic. Contains a bestiary as well.