Shaunti Feldhahn, PhD, is a bestselling author, popular speaker, and social researcher known for her groundbreaking work to help people thrive in life, faith, leadership, and relationships. Her research-based books, such as For Women Only, For Men Only, Find Rest, and The Kindness Challenge, are filled with surprising and practical insights, selling more than three million copies in twenty-five languages.

Shaunti holds a master's degree from Harvard University and a doctoral degree in counseling and psychological studies from Regent University. She started out on Wall Street before unexpectedly diving into social research. Shaunti speaks at dozens of events each year to women, couples, and Christian leaders, sharing her fascinating research findings about the transformative little truths that help us thrive in life, faith, and relationships.

Shaunti and her husband, Jeff, live in Atlanta, Georgia. When they are not on the road speaking at marriage events, they love having coffee together every morning, spending time with their adult son, daughter, and son-in-law, and enjoying every minute of life at warp speed.

James N. Sells, PhD, is a psychologist, counseling professor, the Hughes Endowed Chair of Christian Thought in Mental Health Practice, and codirector of the Charis Institute at Regent University, Virginia Beach, VA.