For over thirty-five years, Ravi Zacharias has spoken all over the world in great halls and universities, notably Harvard, Princeton, and numerous universities internationally. He is listed as a Senior Research Fellow at Wycliffe Hall, Oxford university. He has appeared on CNN and other international broadcasts. The author of several books for adults and children, he powerfully mixes biblical teaching and Christian apologetics. His most recent works include Walking from East to West, a memoir; The Grand Weaver, an exploration of God's intention in both the ordinary and the startling elements o
El finado doctor Walter Martin escribio doce libros y fue reconocido como el "padre" del movimiento cristiano moderno en contra de las sectas. Fue fundador y presidente del Christian Research Institute y conductor del programa radial difundido a nivel nacional "The Bible Answer Man".