Oracle card decks claim to provide insight and positive outlooks to people. Modern oracle cards are conceptually similar to divinatory tarot cards, but they are often not divided into playing card suits. They often lack what is often seen as the "darker" images of traditional tarot cards. Unlike the Tarot, oracle cards are not known to be used for card games. Oracle decks often differ in the number of cards. Common themes used in oracle card decks involve the power of positive thought and metaphysical beings such as angels, fairies, mermaids and unicorns. These cards are sometimes called "fortune telling packs"
Some of the earlier "Oracle" or "fortune telling" cards are similar to conventional playing cards and may even carry the French suit system. These fortune telling cards often claim a "Gypsy" tradition of cartomancy and pre-date the New Age movement by a great many years.  One type of early fortune telling pack named after famous cartomancer Marie Anne Lenormand is popular in Europe. In recent history tarot cards have been used for divination, however this is not known to have been their original use. The earliest uses of tarot cards are for trick taking card games which are still enjoyed today in Europe.
Recent titles oracle cards: Psychological insight cards, spiritual insight cards, 2012 inspiration cards (using maya Tzolkin calender energy cards). Also popular is the 'book with all answers' opening a page answers your preset question.