Church and School of Wicca published a book titled "The Witch's Bible", which generated outrage within the Wiccan community. Many critics referred to it as a "Witchcrap book". Many of the central teachings featured in the book—such as its emphasis on the existence of an asexual monotheistic deity—were at total odds with mainstream Wiccan belief. Many Wiccans were angered at the word "The" as it appeared in the title, presupposing that it carried some form of authority within the Wiccan community. Its comments on race and sex also caused controversy. The Church of Wicca defines Wicca as a monotheistic religion. Gavin expressed the view that
Wicca oral teachings passed along to their initiates. There are many variations on the core structure, and the religion grows and evolves over time. It is divided into a number of diverse lineages, sects and denominations, referred to as "traditions", each with its own organisational structure and level of centralisation. Due to its decentralized nature, there is some disagreement over what actually constitutes Wicca. Some traditions, collectively referred to as British Traditional Wicca, strictly follow the initiatory lineage of Gardner and consider the term "Wicca" to apply only to similar traditions, but not to newer, eclectic traditions. Wicca is typically duotheistic,