AUTHOR of the New York Times bestseller, Thank You for Arguing: What Aristotle, Lincoln, and Homer Simpson Can Teach Us About the Art of Persuasion. The book has been published in 18 languages and four editions with more than 700,000 copies in print; at one point it ranked among the top ten books assigned at Harvard. A simpler guide is How to Argue with a Cat: A Human's Guide to Persuasion. Just for fun, I wrote a novel, The Prophet Joan. And my latest book is Aristotle’s Guide to Self-Persuasion. (See the Books page.)

SPEAKER on the art of persuasion. My most popular presentation: “How to Screw Up.” I’ve done workshops for clients ranging from NASA to Southwest Airlines to the Wharton School of Business. Check out my persuasion course on Creative Live. Some 10,000 people have taken it so far.

PUBLISHER and ghostwriter. I’ve done books for a member of Congress, the founder of an aerospace company, and a 12-year-old girl. My own imprint, Gavia Books, gets clients’ books in bookstores as well as online.

MAGAZINE FIXER of more than a dozen publications, from newsstand to education magazines. (See the magazine page for details.)

My wife, Dorothy Behlen Heinrichs, Director of Patient and Family Giving at Dartmouth-Hitchcock Medical Center, and I live on 150 acres at the base of Cardigan Mountain in New Hampshire. In the winter, I ski to my cabin office.