World Book - Definition and Overview

World Book Encyclopedia is, according to the publisher, "the number-one selling print encyclopedia in the world" [1] (http://www.worldbook.com/wc/browse?id=ab/). The first edition (1917) contained 8 volumes. New editions have since appeared every year except 1920, 1924, and 1932, with major revisions in 1929 (13 volumes), 1947 (18,000 illustrations), 1960 (20 volumes), and 1988. A CD-ROM version of the encyclopedia for Macintosh and Windows computers first appeared in 1990. Since 1998, in addition to the print and CD-ROM editions of the 22-volume encyclopedia, World Book also publishes an online version called the World Book Online Reference Center [2] (http://www.worldbookonline.com). The online version includes all of the articles contained in the print set as well as several thousand additional articles that are available only in the online version.

Other World Book products include The World Book Dictionary (1st edition in 1963), an encyclopedia for younger students called The World Book Student Discovery Encyclopedia (since 1999), and World Book's Animals of the World.

External links

• World Book Encyclopedia website (http://www.worldbook.com/)

Example Usage of World