Doctrines Islam 548 Customs and practices 106 Religious life 90 Faith (Islam) 86 God (Islam) 38 Sufism 32 Religious aspects 24 Islamic law 22 Conduct of life 21 Islam and state 19 Pillars of Islam 18 Muslims 15 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