Grunnbok
Elstad, Hallgeir & Halse, Per. Illustrert norsk kristendomshistorie. Bergen: Fagbokforlaget, 2003. s. 13-168. (156 s.).
Rasmussen, Tarald & Thomassen, Einar. Kristendommen en historisk innføring. Oslo: Universitetsforlaget, 2002. 325 s.
Utdyping
Lynch, Joseph H. Early Christianity. A Brief History. New York: Oxford University Press, 2010. s. 91-120, 131-222. (122 s.)
Marshall, Peter. The Reformation. A Very Short Introduction. Oxford: Oxford University Press, 2009. (150 s.)
Sigurðsson, Jan Viðar. Kristninga i Norden 750-1200. Oslo: Samlaget, 2003. 127 s.
Tyerman, Christopher. The Crusades: A Very Short Introduction. Oxford: Oxford University Press, 2005. (144 s.)
Woodhead, Linda An Introduction to Christianity. Cambridge: Cambridge University Press, 2004. s. 204-401. (198 s.)