Recently, James Ricklef asked several regular users of Tarot how they think giving readings with the cards actually works. He published the answers on his blog in two posts located HERE and HERE.
In his posts he begins by sharing his own theory and that of Robin Wood. He also shares the beliefs of Rachel Pollack, Mary K. Greer, Thalassa, Julie Cuccia-Watts, Lon Milo DuQuette, Pamela Steele, Mike Hernandez, Joseph Ernest Martin, Robert M. Place, James Wells, Bonnie Cehovet, Johanna Gargiulo-Sherman, Lisa Hunt, Ferol Humphrey, Katrina Wynne, and myself (James even included a nice little drawing to make my theory clear).
So here are 18 theories as to how the Tarot works,