Unlike Tarot, oracle decks are more freeform. The artist, (in this case, it's me,) designs the deck from the art to the meanings each card holds. The inspiration for this deck comes from John Marzluff and Tony Angell's book Gifts of the Crow. In their book, they dive into crow behavior and how these incredibly smart birds behave like humans. This guidebook offers more information than what is found in the smaller guidebook included in the deck.