Guillaume Dulude, PhD, is a best-selling author specializing in psychology of human relationships, interpersonal communication strategies, and leadership development. He is an international speaker and consultant for leaders. Through his books and specialized training programs, he makes psychology and science accessible and applicable to the general public and assists organizations in developing sustainable strategies and practices to evolve and achieve their goals.

For the past 20 years, Guillaume has been studying, practicing, and teaching communication psychology, relational skills, and leadership development. He holds a Bachelor's degree in Communication and Business Administration and a Doctorate in Psychology (Ph.D.) with a focus on research and clinical psychology (Psy.D.) from the Université du Québec à Montréal, focusing on cognitive processes, attentional systems, and consciousness.