Witchcraft,
or The Old Religion, is as old as the story of human civilization; evidence
for its roots exists from prehistoric times in many parts of the world. This
book attempts to present the history of the Craft, including its powerful
connection to ecology and its close relationship to medicine and science.
A tradition as old as that naturally accumulated many stories over the centuries. Witchcraft's affiliation with myth, legend, and folklore has created an organic, ever-growing body of literature of great interest to anyone pursuing these subjects. The book is no longer available in print. However, you can download it as a free e-book as it appears on Encyclopedia Mythica.
Here is the link: http://pantheon.org/areas/featured/witchcraft/