Book excerpt: First published in 1987, the Dictionary of Jargon expands on its predecessor Newspeak (Routledge Revivals, 2014) as an authoritative reference guide to specialist occupational slang, or jargon. Containing around 21, 000 entries, the dictionary encompasses a truly eclectic range of fields and includes extensive coverage of both British and U.S. jargon. Areas dealt with range from marketing to medicine, from advertising to artificial intelligence and from skiing to sociology. This is a fascinating resource for students of lexicography and professional lexicographers, as well as the general inquisitive reader.