Methuen taught in the Theological Faculty at the University of Hamburg from 1996 to 1997, and Faculty of Protestant Theology at the University of Bochum from 1997 to 2003.[9] She was ordained in the Church of England as a deacon in 1998 and as a priest in 1999. From 1998 to 2001, she served her curacy in the benefice of East Netherlands (covering Arnhem, Nijmegen and Twenthe) in the Diocese of Gibraltar in Europe. She was then a curate in the benefice of Bonn with Cologne from 2001 to 2003.[10] From 2003 to 2005, she was Director of Training for the Diocese of Gibraltar in Europe and honorary assistant chaplain at St Boniface, Bonn and All Saints, Cologne.[10][11]
Methuen, Charlotte (2008). Science and theology in the Reformation: studies in theological interpretation and astronomical observation in sixteenth-century Germany. London: T & T Clark. ISBN978-0567032713.
Methuen, Charlotte (2011). Luther and Calvin: religious revolutionaries. Oxford: Lion. ISBN978-0745953403.
Andrews, Frances; Methuen, Charlotte; Spicer, Andrew, eds. (2016). Doubting Christianity: the church and doubt. Cambridge: Cambridge University Press. ISBN978-1107180734.