The sub-discipline of information organization which deals with the processes related to the creation and maintenance of bibliographic and authoritative records is called library cataloguing. These records may contain details of books, sound recordings, cartographic materials, images and e-resources which are owned by the library. Catalogs can be of tangible nature such as card catalogs or may possess a digital form like online public access catalogs. The major steps involved in the creation of a library catalog are descriptive cataloging, subject cataloging and authority control. The topics covered in this extensive book deal with the core subjects of library cataloguing. Different approaches, evaluations and methodologies and advanced studies on library cataloguing have been included herein. This book will serve as a valuable source of reference for those interested in this field.