Data mining is like being a treasure hunter. When data miners look for "treasure," they are actually looking for patterns and relationships in large sets of data. Data miners use special computers to find those patterns and relationships in the data. They can then use that information to make decisions about their business. For example, a data miner might be able to tell which customers are likely to buy a particular product, or they might be able to detect problems with their computers. Data mining helps them make better decisions and helps make their business run smoother.