Christianity Islam 60 Religious aspects 51 Relations 47 Leadership 17 Christianity and other religions 13 Jesus Christ 10 History 8 Success 8 Islamic interpretations 7 Interpersonal relations 6 Judaism 6 Christian life 5 Missions 5 Interpersonal communication 4 Moral and ethical aspects 4 Religions 4 Terrorism 4 Attitude (Psychology) 3 Biblical teaching 3 Business 3 God (Christianity) 3 God (Islam) 3 Happiness 3 History of doctrines 3 Just war doctrine 3 War 3 Bible 2 Biography 2 Businesspeople 2