This new edition of a perennial best seller is comprehensive, authoritative and completely up-to-date. Clear, concise dictionary definitions and an easy-to-use thesaurus make this a complete language reference for everyone s writing needs. The four-color atlas, from the mapmakers of Encyclopaedia Britannica is an invaluable aid to understanding our world today. Completely revised and updated dictionary with more than 75,000 definitions. All new thesaurus with more than 30,000 main entries 48 page four-color atlas puts the world at your fingertips Special sections include: Geographical Names; Biographical Names; Handbook of Style; Foreign Words and Phrases; Basic English Grammar; English Root Words; Irregular English Verbs; Signs and Symbols