His research focuses particularly on the cultural history of continental Europe during the Carolingian late-eighth, ninth, and early-tenth centuries, though he has taught and written on such wide-ranging subjects as the history of emotion, the history of masculinity, medieval Latin and vernacular comparative literature, and the visual arts. Professor Romig is currently finishing a book manuscript, tentatively entitled Carolingian Hybridities: The Changing Face of Secular Masculinity, 8th-10th c., and is also working on the translation of a Latin treatise on images and visual art, the Opus Caroli Regis (8th c.), for the University of Toronto Press.