Nancy Smith-Hefner’s much anticipated volume provides rich empirical data and incisive analyses of gender, sexuality, courtship, and marriage among youth in Indonesia, the world’s most populous Muslim-majority nation. Drawing on long-term ethnographic research, Islamizing Intimacies sheds valuable light on the ways in which processes of religious transformation and modernity inform the self-understandings, agency, and everyday interactions of Indonesians as ethical and productive citizen-subjects in a vibrant, forward-looking Muslim nation. Readers seeking an ethnographically well-grounded and theoretically sophisticated treatment of the relationship between ethical subject formation and socio-religious change that is relevant both to the Muslim world and far beyond will definitely welcome—and learn much from—this fascinating book. This strikes me as one of the best written, carefully researched, and deeply insightful books I have read about the island of Java, or Indonesia in general, in a very long time. It addresses matters of contemporary theoretical and social importance—Islam, society, gender, and socioeconomic change—but does so with a fresh perspective. Instead of focusing on public politics, Nancy Smith-Hefner examines the relation between Islam, social life, and sociopolitical change by zeroing in on the moments that are experienced most intensely by the people themselves, those involving romance, spousal choice, and social mobility. This book is a masterpiece and a joy to read. The depth and breadth of the author’s knowledge shines through from the first to the last page. Smith-Hefner provides insights about past, present, and future Indonesian debates on gender and youth culture and chronicles the real-life struggles young Indonesian Muslims have with defining their place within the large spectrum called "Islam." Only someone with a deep knowledge of the relevant theory, Indonesian studies, gender studies, Javanese culture, and Islam can pull off this level of sophistication.