"The Bibliographic Classification (BC2 or Bliss) is the leading example of a fully faceted classification scheme. It provides a detailed classification for use in libraries and information services of all kinds, having a broad and detailed structure and order. The vocabulary in each class is comprehensive and complemented by an exceptionally brief faceted notation considering the detail available, providing indexing to any depth the classifier wishes. The structure of the subject within each class is clearly and simply laid out with rules provided for the quick and consistent placing of any item. A thorough A-Z index is provided in each volume. Users can access a subject catalogue record via any part of the whole, depending upon the primary interest of the user."