Mark Gerson, a New York–based entrepreneur and philanthropist, is the cofounder of Gerson Lehrman Group, 3I Members, United Hatzalah of Israel, and African Mission Healthcare—where he and his wife, Rabbi Erica Gerson, made the largest gift ever to Christian medical missionaries. A graduate of Williams College and Yale Law School, Mark is the author of the national bestseller The Telling: How Judaism’s Essential Book Reveals the Meaning of Life. Mark’s articles and essays on subjects ranging from Frank Sinatra to the biblical Jonah to the Torah and science of clothing have been published in The New Republic, USA Today, Commentary, and Christian Broadcast Network. Mark lives with his wife and their four children.