Dr. Ravi Zacharias is presently Senior Research Fellow at Wycliffe Hall, Oxford University, the leader of Ravi Zacharias International Ministries, and speaker for his radio programs “Let my People Think” (aired on more than 1700 outlets worldwide) and “Just Thinking” (aired on over 400). For forty years he has spoken all over the world and in numerous universities, notably Harvard, Princeton, and Oxford University. Zacharias has been a visiting scholar at Cambridge University and has been honored with the conferring of three doctoral degrees. Dr. Zacharias has authored or edited over twenty books including The End of Reason: A Response to the New Atheists, Can Man Live Without God, Why Jesus, and Has Christianity Failed You? Ravi and his wife, Margie, have three grown children. They reside in Atlanta.
Dr. Norman Geisler, Ph.D., is a prolific author, veteran professor, speaker, lecturer, traveler, philosopher, apologist, evangelist, and theologian. To those who ask, “Who is Norm Geisler?” Some have suggested, “Well, imagine a cross between Thomas Aquinas and Billy Graham and you’re not too far off.” Norm has authored/co-authored over 80 books and hundreds of articles. He has taught theology, philosophy, and apologetics on the college or graduate level for over 50 years. He has served as a professor at some of the finest Seminaries in the United States, including Trinity Evangelical Seminary, Dallas Seminary, and Southern Evangelical Seminary. He now lends his talents to Veritas Evangelical Seminary in Murrieta, California, as the Distinguished Professor of Apologetics.
Dr. Doug Geivett’s interests range over the philosophy of religion, philosophical theology, epistemology, and the history of modern philosophy. He is the author of Evil and the Evidence for God and co-editor of Contemporary Perspectives on Religious Epistemology and In Defense of Miracles: A Comprehensive Case for God’s Action in History. Dr. Geivett has contributed chapters to God Matters: Readings in the Philosophy of Religion; God Under Fire; The Rationality of Theism; and Does God Exist? The Craig-Flew Debate. Dr. Geivett is the former president of the Evangelical Philosophical Society. In the past, Dr. Geivett has served as minister to college students at churches in the Pacific Northwest and in Southern California and continues to speak in churches and on university campuses on subjects related to apologetics and the Christian life.
Dr. E. Calvin Beisner, Ph.D., is Founder and National Spokesman of The Cornwall Alliance for the Stewardship of Creation, a network of Christian theologians, scientists, and economists working through education to promote Biblical earth stewardship, economic development for the poor, and the proclamation and defense of the gospel of Christ. He was Associate Professor of Historical Theology and Social Ethics at Knox Theological Seminary, 2000–2008 (where he also taught logic and apologetics) and of Interdisciplinary Studies at Covenant College, 1992–2000. He is the author of Answers for Atheists, Agnostics, and Other Thoughtful Skeptics and over ten other books and is a world-renowned expert on the application of Biblical worldview, theology, and ethics to economics, government, and public policy, especially regarding environmental science and policy.