Cache management refers to the process of overseeing and controlling the storage of frequently accessed data in a temporary storage area known as a cache. This helps improve the speed and efficiency of data retrieval, as accessing data from a cache is much faster than retrieving it from the main storage system. Effective cache management involves strategies for adding, updating, and removing data from the cache to ensure that it contains the most relevant information. Techniques such as cache eviction policies help determine which data to keep or discard, optimizing performance and resource usage in systems like web browsers and databases.