Islam Religious aspects 63 Doctrines 25 History 24 Customs and practices 21 Religious life 14 Christianity 13 more ... Economics 13 Prayer 12 Relations 12 Economic aspects 11 Islamic ethics 10 Christianity and other religions 9 Banks and banking 7 Sufism 7 Marriage 5 Apologetic works 4 Banking law (Islamic law) 4 Business ethics 4 Criticism, interpretation, etc 4 Da'wah (Islam) 4 Education 4 Leadership 4 Management 4 Medicine 4 Muslims 4 Business 3 Charities 3 Essence, genius, nature 3 Faith (Islam) 3 less ...