Richard J. Leider is the founder of Inventure—The Purpose Company, whose mission is to help people unlock the power of purpose. Widely viewed as a pioneer of the global purpose movement, Leider has written or cowritten eleven books, including three bestsellers, which have sold over one million copies.
David A. Shapiro is a philosopher, educator, and writer whose work consistently explores matters of meaning, purpose, and equity in the lives of young people and adults. He is a tenured philosophy professor at Cascadia College, a community college in the Seattle area.