Various card decks have been used for centuries for divination or "fortune telling".  This ancient technique of prediction can also be used to give information, comfort, support, and validation to the client receiving the reading.  Angel cards help the practitioner to connect to the beings in the Angelic Realm, such as guardian angels and the Archangels; these beings are ordained by God, or the Divine Source, to look out for and protect us here on Earth, giving us support and guidance that we need in all aspects of our lives.
      I use a variety of different card decks for my readings, some that are Tarot decks, as well as others that would be classified as Oracle decks.   The cards can be arranged in different "spreads" for different types of readings, and usually offer the client a mixture of thought-provoking information, supportive comfort, guidance,  and validation of their life's issues and situations.