Title catalogue refers to the description of the external characteristics of documents in retrieval publications? (Title, author, source, etc. ), that is, the articles in books, newspapers and other publications are sorted according to a certain sorting method for people to find the source of the articles.

Catalogue retrieval publications are easy to edit and publish quickly, and are effective tools to find recent literature. Scientists and technicians often use it to fully grasp the information related to research topics or key projects and track the world's scientific and technological trends, so it plays an important role in information dissemination.