McGraw-Hill's world-renowned annual publication continues its tradition of making information on the latest advances in science and technology accessible to non-specialists through concise, well-illustrated articles. Approximately 150 articles from 200 leaders in their respective fields cover technical disciplines from Agriculture to Zoology. 225 images and two-colour illustrations enhance the text. It features numerous cross-references to the "McGraw-Hill Encyclopaedia of Science and Technology, 9th Edition", and references of key literature after each article. An extensive subject index makes finding information a snap. Up-to-date coverage of forefront topics, such as bioterrorism, earth simulator, electric power systems, extreme programming, HIV vaccines, human impact on vertebrate extinction, polymers for micro-electronics, solar storms, and Voice-over IP.