Tad R CallisterTad R. Callister practiced tax and business law in the Los Angeles area for thirty-four years. He has served his community through youth organizations, health research, and the arts. Tad's previous four books on Christian theology hae collectively sold over 400,000 copies. He and his wife Kathryn have six children and twenty-nine grandchildren whom he loves very much. In his spare time, Tad enjoys being with family, writing, rendering church service, and playing racquetball. Read More Read Less