This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
Wouter Hanegraaff's scholarly study of New Age religion situates the modern oracle deck squarely within a documented late twentieth century publishing phenomenon, in which esoteric and spiritual practice became available as a mass market consumer product, sold through ordinary bookshops rather than through initiation or lineage, a genuinely new distribution pattern for material that in earlier eras usually passed through a teacher.
That publishing context matters for an oracle deck entry because it explains why the genre grew so quickly and so variously from the late twentieth century onward, an individual author or illustrator able to design and publish a deck with no controlling tradition or governing body the way an older divination practice might have, and an entry records a deck as a documented commercial and cultural product on those terms.
An oracle deck entry therefore records a deck's real publication date, its actual sales and cultural reach where documented, and its stated influences, treating it honestly as a specific product of the New Age publishing movement Hanegraaff describes rather than as a timeless divinatory tradition. An entry records that commercial and cultural context openly, since it is as much a documented fact about a given deck as its stated symbolism or its stated method of use.