MARK T. MULDER is a professor of sociology at Calvin College. Mulder's scholarship focuses around urban congregations and changing racial-ethnic demographics. He is the author of Shades of White Flight: Evangelical Congregations and Urban Departure (Rutgers University Press, 2015) and co-author of Latino Protestants in America: Growing and Diverse (Rowman & Littlefield, 2017). In addition, Mulder has published numerous peer-reviewed articles in academic journals, including Social Problems and The Journal of Urban History. He has also published pieces for church audiences and won awards from the Evangelical Press Association and the Associated Church Press for his writing.
 
GERARDO MARTÍ is the L. Richardson King Professor of Sociology at Davidson College. He is the author of A Mosaic of Believers: Diversity and Innovation in a Multiethnic Church (Indiana University Press, 2005), Hollywood Faith: Holiness, Prosperity, and Ambition in a Los Angeles Church (Rutgers University Press, 2008), Worship across the Racial Divide: Religious Music and the Multiracial Congregation (Oxford University Press, 2012), and co-author of The Deconstructed Church: Understanding Emerging Christianity (Oxford University Press, 2014) and Latino Protestants in America: Growing and Diverse (Rowman & Littlefield, 2017). Among several research collaborations and professional roles, he served for many years as the Editor-in-Chief of the peer-reviewed journal Sociology of Religion: A Quarterly Review.