This product is a lot of three Christian Classics Bible Study books, including works on Martin Luther, Augustine, and Bonhoeffer. Each published by InterVarsity Press. The books are in trade paperback format and language is English. The topics covered in the books are related to religious and biblical studies, making them ideal for Bible study groups or individuals looking to deepen their understanding of Christian classics. The books are compact with dimensions of 8.2 x 5.5 x 0.2 inches and 64 pages each, making them convenient for reading and study. For more information, see photos. Books are unused.