Shameless is written specifically for the evangelists and Christian workers around the world associated with OnTheRedBox (OTRB) in Madrid, Spain. With only a red box to stand on, OTRB evangelists preach on crowded streets in cities around the world. Jacob Bock, a dear friend, the visionary and leader of OTRB open-air evangelism, titled this book in honor of those who preach the cross without shame a la Romans 1:16.Â