This research examines the rise of the Evangelical, particularly Pentecostal, churches in Guatemala from the beginning of the twentieth century. With their focus on the urgency of conversion (premillennialism) and personal salvation with little concern for investment in human capital, these missions quickly dispersed throughout Guatemala, holding revivals, converting and church-planting.  Institution-building requisite for investment in human capital (establishing schools, libraries, teacher education) that characterized mainline Protestant missions (Presbyterians, Methodists, Lutherans) did not take place in Guatemala.  This book examines the contribution of Evangelical and Pentecostal churches to human capital in the transmission of values such as self-discipline and a work ethic (productivity).