A graduate of Harvard, Dan Klein is the author or co-author of twelve books of non-fiction, most of them on psychological subjects. He lives in Great Barrington, Massachusetts, with his wife and daughter. Dr. David W. Johnson is an Associate Professor in the Department of Pharmacology and Physiology at the College of Osteopathic Medicine, University of New England, and Adjunct Professor in the Department of Physiology and Experimental Therapeutics at the Boston University School of Medicine.
