First published in 1907, and revised twice since then, An Explanation of Luther's Small Catechism, by Joseph Stump, aims to present both an analysis of Luther's Small Catechism and a clear, concise, yet reasonably full explanation of its contents. Wherever he deemed it necessary, the author has added a fuller explanation of the text of the catechism than that which Luther gives.

This edition has been typographically restyled. In a few instances, sentences or paragraphs have been rewritten to bring them up to date. Otherwise the text remains unaltered and the fundamental nature and purpose of the book remain unchanged.