Luther's lives: two contemporary accounts of Martin Luther

Philip Melanchthon and the historical Luther / Ralph Keen

Philip Melanchthon's History of the life and acts of Dr Martin Luther / translated by Thomas D. Frazel and annotated by Ralph Keen

Johannes Cochlaeus: an introduction to his life and work / Ralph Keen

The deeds and writings of Dr Martin Luther from the year of the Lord 1517 to the year 1546 related chronologically to all posterity by Johannes Cochlaeus for the first time translated into English by Elizabeth Vandiver and annotated by Ralph Keen.