A medical doctor by professional training Dr. Zakir Naik is renowned as a dynamic international orator on Islam and Comparative Religion. Dr. Zakir Naik clarifies Islamic viewpoints and clears misconceptions about Islam, using the Quran, authentic Hadith and other religious Scriptures as a basis, in conjunction with reason, logic and scientific facts. Dr. Zakir is popular for his critical analysis and convincing answers to challenging questions posed by audiences after his public talks. In the last 6 years (by the year 2002), Dr. Zakir Naik has delivered more than 600 public talks in the U.S.A., Canada, U.K., Saudi Arabia, U.A.E., Kuwait, Qatar, Bahrain, Oman, South Africa, Mauritius, Australia, Malaysia, Singapore, Hongkong, Thailand, Guyana (South America) and many other countries, in addition to numerous public talks in India. He has successfully participated in several symposia and dialogues with prominent personalities of other faiths. His public dialogue with Dr. William Campbell (of USA), on the topic The Quran and the Bible in the light of Science held in city of Chicago, U.S.A., on April 1, 2000 was a resounding success. Sheikh Ahmed Deedat, the world famous orator on Islam and Comparative Religion, who had called Dr. Zakir, Deedat plus in 1994, presented a plaque in May 2000 awarded to Dr. Zakir Abdul Karim Naik for his achievement in the field of Dawah and the study of Comparative Religion with the engraving Son what you have done in 4 years had taken me 40 years to accomplish, Alhamdullilah. Dr. Zakir Naik appears regularly on many international T.V. Channels in more than 100 countries of the world. He is regularly invited for T.V. and Radio interviews. More than a hundred of his talks, dialogues, debates and symposia are available on video cassettes, video CDs and audio cassettes. He has authored books on Islam and Comparative Religion.