A professional who compiles information on library materials, such as books and periodicals, and prepares catalog cards to identify materials and to integrate information into library catalog. Responsibilities include:

• Verifies author, title, and classification number on sample catalog card received from classifier against corresponding data on title page.
• Fills in additional information, such as publisher, date of publication, and edition.
• Examines material and notes additional information, such as bibliographies, illustrations, maps, and appendices.
• Copies classification number from sample card into library material for identification.
• Files cards into assigned sections of catalog.
• Tabulates number of sample cards according to quantity of material and catalog subject headings to determine amount of new cards to be ordered or reproduced.
• Prepares inventory card to record purchase information and location of library material.
• Requisitions additional cards.
• Records new information, such as death date of author and revised edition date, to amend cataloged cards.
• May supervise activities of other workers in unit.