Christopher received his master of library science degree from Queens College CUNY with a concentration on archives and special collections, a master’s in religious studies (Islamic studies) from Yale University, and his bachelor’s in religious studies from SUNY at Stony Brook. He also lived in Morocco for two years studying Arabic at an institute in Fez before attending Yale. 

From May 2015 to September 2021, Christopher was the inaugural map librarian/curator at the Heritage Library of the Qatar National Library. Prior to that he worked at the Map Division of the New York Public Library. He has presented at many international conferences on historical maps as well as at Qatar National Library and for other educational institutions and organizations in Qatar. 

His professional affiliations include the American Library Association, Society for American Archivists, and the International Cartographic Association (Commission on the History of Cartography).