Associate Fellow, National College of Art & Design, Dublin; Visiting Professor, University of Ulster, Belfast; Honorary Research Fellow, University of Wales; Honorary Fellow, British Society of Master Glass Painters.
Founder, degree course in History of Design, NCAD; founding director, M.A.course in the History of Design and the Decorative Arts, NCAD. Books include Harry Clarke (1979); A Gazetteer of Irish Stained Glass (1988); Art and the National Dream (1993); The Arts and Crafts Movements in Dublin and Edinburgh (1998), with E.S. Cumming; Harry Clarke: The Life & Work (4th ed. 2012); Wilhelmina Geddes: Life and Work (2015)
Contributor in 2015 to ‘Revival to Revolution. The literary career of Thomas MacDonagh’, symposium and forthcoming publication (Irish Revival Network, UCD) and in 2016 to: ‘Fire in the Blood‘ and ‘A Terrible Beauty is Born‘ (The View), both RTE television.