What is "tarotology"

Tarotology provides the theoretical basis for Tarot reading, a subset of Cartomancy, which is the practice of using cards to gain insight into the past, current and future situations by posing a question to the cards. Variations on the reasons for such belief range from believing on guidance by a spiritual force, to belief that the cards are but instruments used to tap either into a collective unconscious or into their own creative, brainstorming subconscious.

Tarot decks have seventy-eight cards divided into four suits of fourteen cards each plus the twenty-two trumps. The trumps and suits are part of a trump style game with many historical and national variations. In modern times suit cards are Pentacles, Swords, Cups, and Wands. Trumps are cards like the Fool, The Magician, et al. Since the introduction of the cartomantic and occult tarot there have been ongoing attempts to "get it right." Subsequently the names of both have been played with over time.