This is the top-level portal for Class Z: Bibliography and Library Science.
Note that these subclasses diverge from the Library of Congress Classification more than other Wikisource portals; see Wikisource:Portal classification system adaptation for more information
Information resources covers information services, databases, and the internet, as well as specific formats and media.
Child portals: Audio recordings • Film (Star Film Company • Universal Newsreel • Van Beuren Studios)
Books covers the subject of books in general, including the history of books.
Writing covers the how (from calligraphy and penmanship to type-writers and word-processors) and what (including shorthand and cryptography) of writing.
Paleography is the study of ancient writings.
Book industries and trade covers the commercial aspects of bibliography and the practical processes of book creation.
Child portals: American Type Founders • License documents
Publishing companies: Alfred A. Knopf • American Book Co. • Angus & Robertson • Ascherberg, Hopwood & Crew, Limited • Cambridge University Press • Century Co. • Chappell Harms, Inc. • Charles Scribner's Sons • Dodd, Mead & Company • Francis, Day & Hunter Ltd. • Frederick A. Stokes & Brother • Ginn & Co. • G.P. Putnam's Sons • Harvard University Press • Heath & Co. • J. W. Arrowsmith • The Lawyers Co-operative Publishing Co. • Macmillan and Company • McLoughlin Brothers • Portal:Oxford University Press • P. J. Kennedy & Sons
• Pater & Knapton
• R. Shugg & Co. • Religious Tract Society • Society of SS. Peter and Paul • Time Inc. • Yale University Press
Libraries covers library and information science, their collections, buildings and administration.
Bibliography covers lists of books and related theory and philosophy.
Child portals: Anonymous texts • Banned books