The 20x–24x fields contain the title of the item and the variant and former titles that apply to that item. Use field 245 (Title Statement) for the title as it appears on the chief title source for an item or a title formulated according to cataloging guidelines. The uniform title is the primary collecting title for items appearing under multiple titles. The key title is a special unique title for continuing resources (serials and integrating resources). Use the indicator values of these fields entered under a name heading to generate access points and display notes.
Use the 25x–28x fields for descriptive information about the item, other than title related data. This includes the edition statement, descriptive information related to specific forms of materials, imprint and other publication source information and addresses.