Offers a selection from Luther's massive literary output which contains the essence of his thought. "The Ninety-five Theses"--The document which sparked the Reformation--criticized the sale of indulgences and spoke with firm conviction about the true nature of repentance. "Address to the Nobility" asserted the spiritual independence of the laity and attacked Church corruption. "Concerning Christian Liberty" is a statement of Luther's basic theological position and an exposition of the doctrine of justification by faith. "A Small Catechism" is an instruction in the elements of Christian belief and practice.