“Takers believe in a zero-sum world, and they end up creating one where bosses, colleagues and clients don't trust them. Givers build deeper and broader relationships - people are rooting for them instead of gunning for them.”

American popular science author and professor of organizational psychology

Adam M. Grant is an American popular science author and professor of organizational psychology at the Wharton School of the University of Pennsylvania. He is known for writing about work, motivation, and how people and organizations can improve performance and make better decisions. His writing draws on organizational psychology and is aimed at a broad audience, which has made him a familiar name in contemporary popular nonfiction.