The Cambridge Encyclopedia, which now appears in a significantly expanded and updated Fourth Edition, is one of the world's leading single-volume encyclopedias. It has an unrivalled reputation for its authority and reliability, as well as for the stylishness and concise nature of its entries, and it is a presence in homes, studies, offices, classrooms and libraries the world over. The book, with A-Z entries running to about two million words and an easy-to-use Ready Reference section, has been praised for its inclusiveness and for the clarity of its information. As a compendium of general knowledge in one easily accessible volume, it provides a superb reference resource. Its range of coverage is broad (from people and places to scientific concepts, the media, philosophical ideas, and international issues) and its information is precise and accurate.