His first book, Mates and Lovers: A History of Gay New Zealand (2008) won the NZSA E. H. McCormick Best First Book Award for Non-Fiction in the 2009 Montana Book Awards. His other books are Manly Affections: The Photographs of Robert Gant, 1885-1915 (2012), Two-by-Two: Men in Pairs (2013) and Southern Men: Gay Lives in Pictures (2014). He has published on the history and sociology of sexuality, masculinity and adolescence in many international journals, including Journal of the History of Sexuality, The Sociological Review, Rethinking History, Visual Anthropology, Gender, Place & Culture and Journal of Social History.