Use value refers to the practical or functional worth of a good or service, based on its ability to satisfy a specific need or desire. It is the tangible benefit that an item provides to its user, rather than its monetary or exchange value. Use value can vary depending on individual preferences and circumstances, and is often subjective. For example, a book may have a high use value for someone who loves to read, but little use value for someone who has no interest in books. Use value is an important concept in economics and helps determine the demand for goods and services in a market.