The Suit of Pentacles can also sometimes be referred to as the Suit of Coins. Another phrase that refers to this suit is The Suit of Discs. Each Suit contains 14 cards. Similar to a regular deck of cards, they have an ace, 2 to 10 numbered, queen, king. They also contain the page and knight which split the spot the Jack would typically occupy. These cards were originally used to play certain card games and still are throughout many European countries. The Suit of Pentacles would correspond with the Diamonds suit. However, they can be used for divination, which has become increasingly popular in The United States.
In tarot, Pentacles represent the Earth and refer to physical wealth or material possessions. These are associated with the environment you surround yourself with. Pentacles can also sometimes be thought to speak to your self-esteem and self-image. The Earth also symbolizes fertility and it thought to be feminine, much like a personification of Mother Nature.
Should a reading be primarily Pentacles, you may be suffering from financial conflicts- such as issues with your current job and compensation.