The Book of Concord: The Confessions of the Evangelical Lutheran Church, Kolb, Robert and Timothy J. Wengert, ed. (Minneapolis: Fortress, 2000)
Gassmann, Günther and Scott Hendrix. Fortress Introduction to The Lutheran Confessions. (Minneapolis: Fortress, 1999)
Gritsch, Eric W. A History of Lutheranism, (Minneapolis: Fortress, 2003). Second edition is also acceptable.
Samuelson, Erik T.R. Five Types of Lutheran Confessional Theology: Toward a Method of Lutheran Theology In America for the Twenty-First Century. (Everett, WA: Wittenberg Workshop, 2006).