Junior High School Library Catalog, first published in 1965, was developed to address the unique needs of early adolescents. It developed from the Standard Catalog for High School Libraries, which was subsequently modified in scope and retitled Senior High School Library Catalog. Since its inception, the Catalog has been published regularly every five years with annual supplements. With the 7th edition, the title of the Catalog was changed from Junior High School Library Catalog to Middle and Junior High School Library Catalog to reflect the prevalence of middle school programs and the extension of coverage to grades five and six.