A multimedia encyclopedia (MME) demonstration disk has been developed by the Microsoft Corporation, which contains five-page articles on 12 subjects. Each article contains text, images, audio, and in some cases, animation and full motion digital images. Each MME article is constructed as a network of linked text, image, and sound files. With mouse or keyboard control, the user can browse through an article, select audio descriptions or sound effects, images, cross-references to other articles, or supplementary text information, and a mouse click activates the playback and display routines. The MME provides three data-accessing methods, each designed to accommodate different learning styles: an outline search method called "PathKey"; a keyword search method call "WordKey"; and an alphabetically ordered index called the "Browser." Any data object may be associated with highlighted or colored area on the screen. These areas are called "buttons" or "hot keys," and are activated when selected with the mouse. By providing links to multiple levels of information using different media, this hypermedia system is able to accommodate a much broader audience than a static two-dimensional information system. Examples of screens from the MME system are presented in 17 figures. (EW)