A catalog or catalogue is an organized, detailed, descriptive list of items arranged systematically. It may also refer to a list of items enumerated with a specific numbering scheme. The word comes from the Hesiodic Catalogue of Women or Eoiae.

Some specific types of catalogs are:

• Library catalog (books and other media)
• Union catalog
• Course catalog (course curriculum)
• Collection catalog (museum, archive)
• Exhibition catalog (art)
• Auction catalog (auctions)
• Catalog numbering systems for single records (gramophone records)
• Stamp catalog (postage stamps)
• Database catalog (computer science)
• Catalogue raisonné (list of artworks)

In science:

• Astronomical catalog (astronomical objects)
• Star catalog (stars)
• Flora (plants or vegetation)
• Herbal (medicinal plants)
• Pharmacopoeia (medication)

In merchandising:

• Mail-order catalog
• Online catalog
• Parts catalog
• Trade literature

See also

• Categorization
• Classification
• Compendium
• Registry
• Scientific classification
• Systematic name