This International Standard specifies the information to be printed on title leaves of books and the manner in which this information should be presented and arranged. Its purpose is to help editors and publishers to produce title leaves that facilitate unambiguous citation by users such as booksellers, librarians, documentalists, authors, indexers, cataloguers, database producers, etc. Books may be monographs, collections, textbooks, pictorial works, atlases, theses, conference proceedings, technical reports, etc. They may be published as individual works as well as multi-volume works or parts of series. This International Standard applies to books that have horizontal composition (in which the printed text is to be read horizontally from left to right).