Because there is no centralised organisation in Wicca, and no single "orthodoxy", the beliefs and practices of Wiccans can vary substantially, both among individuals and among traditions. Typically, the main religious principles, ethics, and ritual structures are shared, since they are key elements of traditional teachings and published works on the subject.

As practised by initiates in the lineage of Gerald Gardner, Wicca is a variety of witchcraft founded on religious and magical concepts. As such it is distinguished not only by its religious beliefs, but by its practise of magic and its ethical philosophy, initiatory system, organisational structure and secrecy.[4] Some of these beliefs and practices have also been adopted by others outside of this lineage, often termed Eclectic Wiccans, who generally discard the institutions of initiation, strict secrecy and organisational heirarchy, and tend to have more widely varying beliefs. Some Eclectic Wiccans neither perform magic nor identify as witches. Wiccans generally will not proselytise, and initiatory groups may even deny membership to some individuals, since an initiate is considered to be a priest or priestess and is expected to develop the skills and responsibility that entails.[4]

Wicca is only one variety of pagan witchcraft, with distinctive ritual forms, seasonal observances and religious, magical and ethical precepts. Other forms of witchcraft exist within many cultures, with widely varying practices. Many Wiccans, though not all, call themselves Pagans, though the umbrella term Paganism encompasses many faiths that have nothing to do with Wicca or witchcraft.

~Wikipedia