Susan D. Stewart is professor of sociology at Iowa State University. She is author or co-author of several books including Co-Sleeping: Parents, Children, and Musical Beds, Marriages, Families, and Relationships, Brave New Stepfamilies, and Multicultural Stepfamilies. Her research focuses on gender, family diversity, parenting, and children and adults' physical, social, and emotional health. She has published articles on a range of topics in leading peer-reviewed journals such as Journal of Marriage and Families, Journal of Family Issues, Demography, and Journal of Gynecology and Women's Health. Dr. Stewart resides in Ames, Iowa with her husband, daughter, and three cats.