Directory structure of the Islam related categories

                                                           Spirituality                                                                 │            Literature                                    Spiritual books                 │                                               │           Islam related                                  Religious texts     ┌───────────┼───────────┐                                   │ Critical   Non-Islamic   Islamic                         Abrahamic texts                     ┌───────┼───────┬───────────────────────────┤                   Sunni   Shi'a   Sufi                    Islamic texts                     │       │       │            ┌──────────────┴─────────────┐                   Fiqh    Fiqh   Poetry       Hadith                       Qur'an                                           ┌──────┴──────┐               ┌─────┴─────┐                                     Ilm ar-Rijal   Collections       Tafsir       Sura                                                     ┌───┴───┐       ┌───┴───┐       │                                                   Sunni   Shi'a   Sunni   Shi'a   Ayah