[2] While working for an aerospace company in southern England's Salisbury Plain – an area replete with prehistoric monuments, he became interested in the druids.

The Frosts had adopted the term "Wicca" in the late 1960s, when it was gaining increasing usage within the pagan witchcraft community, as a name for their religion.

[4] In the late 1970s, they began holding an annual "Samhain Seminar", in which workshops, rituals, and lectures took place, primarily for students of their correspondence course.

[4] Within the American Wiccan and wider modern pagan community, the Frosts have been at the center of various disputes, particularly surrounding issues such as homosexuality and theology.

[10] The Wiccan Margot Adler suggested that much of this controversy stemmed from Gavin's "wry and rather bizarre sense of humor, and his tendency to say anything to get a rise out of someone", something which she thought had resulted in the Frosts often being "misunderstood".

[10] In person, she thought, the Frosts "have always been delightful", with Gavin being "kind and humorous" and Yvonne being "forthright and even a bit prim".

[10] Many of the central teachings featured in the book, such as its emphasis upon the existence of an asexual monotheistic deity, were completely contradictory to mainstream Wiccan belief.

[3] Unlike many other Wiccan groups, there was no particular emphasis upon female divinity or the feminine, with Gavin calling beliefs about ancient matriarchies "a Marxist heresy".

[13] He also expressed belief in "stone gods" – idols which are created by humans as a storage for energy, which can then be utilized for magical purposes.

[10] In 2006, the Wiccan journalist Margot Adler suggested that the School of Wicca may have been responsible for the formation of as many as one hundred covens.

[10] The School's curriculum includes classes on a variety of subjects associated both with Wicca as a religion and with occult and metaphysical studies and practices in general.

Other topics include: Advanced Celtic Witchcraft and Shamanism, Astral Travel, Astrology, Graphology, Mystical Awareness, a Natural Wicca Survey Course, Practical Sorcery, Prediction, Psychic and Herbal Healing, and Tantric Yoga.