Dietrich Bonhoeffer
Discipleship. Dietrich Bonhoeffer Works, Volume 4.  Dietrich Bonhoeffer; John D. Dodsey and Geffrey B. Kelly, Editors. Originally published in 1937, this book (generally known in English by the title The Cost of Discipleship) soon became a classic exposition of what it means to follow Christ in a modern world beset by a dangerous and criminal government. Hardcover, 384 pp: ISBN|978-0-8006-8304-7.  Paper, 354 pp: ISBN|978-0-8006-8324-5.