Shaunti and Jeff Feldhahn are best-selling authors, popular speakers and nationally-renowned social researchers whose findings have been featured in media as diverse as The Today Show, the New York Times, Focus on the Family and Family Life Today. Both with graduate degrees from Harvard, Shaunti is a best-selling author or co-author (with Jeff) of six titles in the "Only" series, while Jeff is founder and CEO of the tech company World2One. The Feldhahns have two children and live in Atlanta, Georgia.