He is the Director of the Çadır Höyük Archaeological Project in the Yozgat Province of central Turkey, and is co-editor of the Oxford Handbook of Ancient Anatolia (2011) and of Hittite Studies in Honor of Harry A Hoffner, Jr. (2003). He has published several books and articles on Hittite religion and archaeology, and has been carrying out archaeology fieldwork in Turkey for nearly a quarter of a century.