This study investigates the meaning and contribution of the Slovak Lutheran social ethics to the social ethical thinking in Slovakia. The book attempts to examine the subject in the social, political and spiritual context of the development of the Slovak nation, Slovakia and Czechoslovakia, linking the development of the Protestant social ethics in Europe and the rest of the world. The first chapter presents a methodological background for the understanding of the problems of social ethics in general, emphasizing Slovak Lutheran social ethics. The book then presents an historical survey of the development of Lutheranism in Slovakia, analyzing the development of the social and ethical opinions of Slovak Lutherans from approximately the close of the 19th century to the end of World War II. The final two chapters examine Christian Socialism and Christian Realism after World War II.