Helicon's unrivalled comprehensive encyclopedia provides an authoritative insight into the worlds of science & technology, history, geography, politics, and the arts. Heavily hyperlinked articles (Robert Francis Kennedy) are supported by images (Abba), a fabulous integrated atlas (Dominican Republic) and weather guide (Las Vegas), animations (electric motor), video (construction of the Berlin Wall), and sound clips (The Tyger), quotations (Elvis Costello), and thousands of links to Web sites (About the United Nations.