Originally intended for the advanced instruction of young people, Chytraeus' A Summary of the Christian Faith is a marvelous book for anyone seeking a deeper understanding of the faith. Chytraeus (1531-1600), one of the authors of the Formula of Concord, ranks as one of the central Lutheran theologians of 16th century.
A Summary of the Christian Faith (Originally entitled Catechesis) offers two great blessings to its readers: (1) an opportunity to see how one of the Lutheran fathers confessed and taught the faith, and (2) an opportunity to grow in one's own knowledge and appreciation of Christian doctrine. "Chytraeus had the irenic nature of Melanchthon with the doctrinal commitment of Luther." (From the Introduction.)