Christopher is from County Galway in the West of Ireland. He studied literature at Trinity College, University College Dublin, and UW-Milwaukee. He has published many articles and theatre reviews. For 28 years Christopher taught humanities mostly to working adults at Strayer University in Washington, DC.  For eight years he was a lecturer in English at The George Washington University, where he taught Irish poetry, drama, and fiction.  For 30 years at Politics and Prose bookstore in DC, he has led numerous classes on various interests, including Irish literature, Shakespeare, literary Washington, and film. He has served as an Expert on over 20 Smithsonian Journeys and has lectured at Smithsonian Associates.