John Caldwell's clients have included:

PUBLICATIONS
Mad Magazine
Barron's
The Wall Street Journal
Playboy
First
Prospect
Reader's Digest
Harvard Business Review
The New Yorker
The National Lampoon
Writer's Digest
Brandweek
Parkhurst Exchange
Medical Economics
Cortlandt Forum
Woman's World
Rolling Stone
The National Enquirer
Hemispheres
The Writer
USA Weekend
King Features
Cartoon Features Syndicate

PUBLISHERS
Workman Publishing
McGraw-Hill
Harper & Row
Fawcett Columbine
Writer's Digest Books
Barnes & Noble
Rutledge Hill Press
Bonus Books

GREETING CARD COMPANIES
Recycled Paper Greetings
Nobleworks

CORPORATE
Dow Jones & Company
General Electric
The AYCO Company, LP

AND FROM THE CUTTING EDGE WORLD
OF HARD CORE EIGHTIES ROCK
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