The International Standard Serial Number (ISSN) is an eight-digit code used to uniquely identify serial publications, such as magazines, journals, and newspapers. This number helps libraries, publishers, and distributors manage and track these publications efficiently. Each ISSN is specific to a particular title, ensuring that different works are not confused with one another. The ISSN system was established in 1975 and is managed by the International ISSN Centre in Paris, France. It is widely used around the world, facilitating the organization of serials in databases and catalogs. By providing a standardized way to reference serial publications, the ISSN enhances accessibility and discoverability for researchers and readers.