More than 1,000 new and revised articles and 4,000 expert contributors!
• More than 23,000 fascinating biographies; new biographies of major world leaders include U.S. President Barack Obama, Dalai Lama XIV, Dmitry Medvedev, Evo Morales, Nicolas Sarkozy, Lee Myung-bak, Ellen Johnson-Sirleaf, and Umaru Yar'Adua.
• Extensive revisions and new articles cover the latest on all school subjects, such as blogs, skateboarding, the Chemical Weapons Convention, the Olympics, and the human genome.
• Updated geographical information about the Balkans, Central America, Ireland, Israel, Lebanon, Nepal, Russia, the United States, and other countries and regions. In total, new coverage for over 450 cities, countries, islands, rivers, and mountains.
• Hundreds of vivid new photographs and illustrations covering Native Indian Peoples, the human body, pack and sea ice, and other subjects.
• Unmatched accuracy with articles written by Nobel laureates, historians, curators, professors, and other experts. Dozens of new contributors include Arnold Palmer (professional golfer) on the Masters Tournament, Barry Schneider (Director of the U.S. Air Force Counterproliferation Center) on the Chemical and Biological Weapons Conventions, Elizabeth Prine Pauls (former State Archaeologist of Iowa) on Native American topics, and George P. Noon (Division Chief of Transplant Surgery at Houston's Baylor College of Medicine) on the Artificial Heart.
