It was written by the Scandinavian theologian Jone Salomonsen of the California State University, Northridge and first published in 2002 by the Routledge.

Gardnerian Wicca revolved around the veneration of both a Horned God and a Mother Goddess, the celebration of eight seasonally-based festivals in a Wheel of the Year and the practice of magical rituals in groups known as covens.

Gardnerianism was subsequently brought to the U.S. in the early 1960s by an English initiate, Raymond Buckland (1934–), and his then-wife Rosemary, who together founded a coven in Long Island.

One initiate of both the Dianic and Gardnerian traditions was a woman known as Starhawk (1951–) who went on to found her own tradition, Reclaiming Wicca, as well as publishing The Spiral Dance: a Rebirth of the Ancient Religion of the Great Goddess (1979), a book which helped spread Wicca throughout the U.S.[5][6] Prior to Magiocco's work, three American researchers working in the field of Pagan studies had separately published investigations of the Pagan community in both the United States and the United Kingdom.

The first of these had been the practicing Wiccan, journalist and political activist Margot Adler in her Drawing Down the Moon: Witches, Druids, Goddess-Worshippers, and Other Pagans in America Today, which was first published by Viking Press in 1979.