Susan Gregory is the author of El ayuno de Daniel: fortalezca su espíritu alimente su alma y renueve su cuerpo, The Daniel Fast: Feed Your Soul, Strengthen Your Spirit, and Renew Your Body, Out of the Rat Race: A Practical Guide to Taking Control of Your Time and Money So You Can Enjoy Life More, The Daniel Fast Workbook: A 5-Week Guide for Individuals, Groups & Churches, and The Daniel Cure: The Daniel Fast Way to Vibrant Health.