Roget's International Thesaurus (Indexed 6th Edition) : The only thesaurus based on Peter Roget's original classic first published in 1859, this edition is the most definitive, up-to-date, and comprehensive reference of its kind. Not an A-Z listing, this all-time bestseller retains Roget's unique and brilliant category-based organizing system, an innovative ordering of the English language designed to organize readers' thoughts and stimulate ideas. Here all synonyms, antonyms, and related words are grouped together for quick and easy comparison, without all the needless repetition and cross-referencing of alphabetical thesauri. With a 20% revision, including edits to reflect the very latest trends and technologies - and nearly 3,000 new words - Roget's International Thesaurus, 6th Edition is an essential reference for every home library. 1248 pages.