The cards are split into two categories, The Major Arcana and The Minor Arcana.
The Major Arcana consists of 21 cards:
Wheel of Fortune
The Hanged Man
The Minor Arcana consists of four sets of fourteen cards from Ace to King in Wands, Swords, Cups,Pentacles.
The cards can be read in a standardised manner, according to each literal meaning of each card. I find this a little restricting so I interpret the cards with instinct and linking each one to the following, this tells a story of what is going on in your life, the ups and downs, the good and not so great, it always gives a conclusion and often offers assistance.