Doctrines Islam 541 Customs and practices 104 Religious life 88 Faith (Islam) 83 God (Islam) 38 Sufism 31 Religious aspects 24 Islamic law 22 Conduct of life 19 Islam and state 19 Pillars of Islam 18 Muslims 14 Islamic ethics 13 Islamic sects 13 Koran 13 Early works to 1800 12 Shi'ah 12 Hadith 10 Interpretation and construction 10 Death 9 History 9 Eschatology, Islamic 8 Kufr (Islam) 8 Ummah (Islam) 8 Criticism, interpretation, etc 7 Islam and reason 7 Islam and social problems 7 Judgement Day (Islam) 6 Study and teaching 6