The Spirit of Catholicism is a classic work on the Catholic Faith by Prof. Dr. Karl Adam of T bingen University in Germany. It delves into the origins of the Church, its beliefs, history, constitution, doctrine and sacraments. Titled in German Das Wesen des Katholismus (The Essence of Catholicism) it was originally published in 1924 but is still recognized to this day as perhaps the best explanation of Catholicism available to the average man. Dr...