Subject heading system

A subject heading system is a standardized method used by libraries to organize and categorize books and other materials based on their topics. It assigns specific words or phrases—called subject headings—that accurately describe the content. This system allows users to find all materials related to a particular subject quickly, regardless of how different authors or publishers might describe the topic. Essentially, it's like a detailed tagging system that makes navigation and retrieval of information more efficient within library catalogs and databases.