Cynthia Gibas
Cynthia Robbins-Roth
Cynthia Snyder Dionisio
Cyril Levicki
Dale Carnegie
Dale Dougherty
Dallas Murphy
Damon Centola
Dana Moore
Dan "Effugas" Kaminsky
Dan Gardner
Dan Harkey
Dan Heath
Dan Heller
Dan Herman
Dan Hill
Daniel Burnstein
Daniel Burstein
Daniele Chauvel
Daniel E. O'Leary
Daniel Gilly
Daniel Goldberg
Daniel Goleman
Daniel H. Pink
Daniel Ichbiah