World Book Encyclopedia

General encyclopedia with 26,000+ articles (8,000 more articles than print edition) plus 12,000+ pictures and maps, 100+ videos and animations, 10,000 sounds (including pronunciations), and 7,000 links to editor-approved Web sites. Also includes the World Book Dictionary with 248,000 definitions, the World Book Atlas with 750 maps, and the full text of primary source documents, major literary works, and selected recent articles from magazines.