The origin of tarot cards is uncertain; they were perhaps introduced into Europe by Crusaders between 1095 and 1270 or by Gypsies, and are known to have been in use in Italy in the early 14th century. Although the game of tarot (also called tarok) is still played in central Europe, the cards are now mainly used for fortune-telling.
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I am half Belgian, and my wife is half Spanish; the only reason I am saying that is that modern Spanish playing cards still use the Tarot symbols for suits, as do old French packs of cards (Dont know about modern ones). The symbols are obvious; Wands=Clubs, Cups=Hearts, swords=spades and pentacles=Diamonds.
The Tarot can be used forDivination (self or for others), Meditation, Cabalistic Studies and spiritual Development. I use the Tarot for Meditation and for Self guidance and even perhaps for Spiritual development. There are many methods of using the cards, and as far as I know, each person 'finds' whatever method they personally prefer.
I have read Eileen Connolly 'Tarot - the complete handbook for the apprentice' ISBN 0-7225-3221-0, as I particularly like her style. Even if you doubt the 'divination' aspect, it is a beautiful study, full of prayers and noble sentiments. Good luck!