Jeff Hardin is chair of the Department of Integrative Biology at the University of Wisconsin. In addition to numerous scientific research articles relating to embryonic development, Hardin is senior author of World of the Cell. He received a Master of Divinity degree at the International School of Theology in Southern California, where he met his wife, Susie, who worked in campus ministry with Cru (Campus Crusade for Christ). He is on the national advisory board for Intervarsity Christian Fellowship’s Faculty Ministry and serves as faculty advisor for the Navigators and InterVarsity Graduate Christian Fellowship on the UW-Madison campus.