特色：
simple enough for eighth graders, yet comprehensive enough to serve adult researchers you can trust the encyclopedia americana to provide comprehensive information that's in-depth, reliable, and up-to-date: more than 45,000 articles written by experts in easy-to-understand, layperson's language  the latest demographic information on nations, their capitals, and most populous cities  coverage of national and international events reflects the most recent developments possible  major revisions of articles on science and technology, society and politics, visual and performing arts, literature and philosophy, and other key areas  hundreds of new biographies in all major subject areas handy search features make the encyclopedia americana easy to use:  fact boxes highlight statistics and essential information  chronological tables provide a quick view of history  cross-references direct readers to related articles and subjects  6,500 bibliographies for further reading set features:  7 1/2 x 10 1/4  26,000 pages with over 23,000 illustrations, including 15,000 photographs, 3,800 diagrams and charts, and 1,200 maps  25 million words  comprehensive index