A clean, easy-to-use design with 7,500 new words and updated definitions in all subject areas. Totally new illustration program with 2,500 new images. New computer and Internet terms, as well as newly coined words in science, politics, business, and the arts. Up-to-date biographical and geographical entries. Expert usage guidance from the American Heritager Usage Panel. Includes a FREE CD-ROM containing the full dictionary and a complete thesaurus with more than 260,000 synonyms. Fully loadable Windowsr or Macintoshr. 1,664 pages.