- George Thomas Kurian (2010). The Encyclopedia of Christian Literature, Volume 1. Scarecrow Press. ISBN 9780810869820. Retrieved 28 December 2011.
After the Bible, Christian devotional literature has provided the most popular and instructive kind of reading and guidance for believers. Most broadly considered, Christian devotional literature may be thought to encompass any inscribed verbal artifact employed to stimulate the production, sustenance, and direction of the unique interior Christian self, whether solely in relation to the divine or including also service to fellow believers, neighbor, and/or world.