Primary Sources:
Islamic State of Iraq and al-Shām: “Messages from the Land of Epic Battles #21″
Islamic State of Iraq and al-Shām: “On the Recent Events”
Abu Usamah al-‘Iraqi admits to killing fighters from the Jabhat al-Nusra in the gas plant
A very important statement distributed in the city of Al-Bab
A checkpoint in Wilayat al-Raqqah
ISIS cubs having breakfast before join survival and military training
ISIS cubs in Abu Musab al-Zarqawi camp for military and survival training
ISIS has crucified a man accused of murder in Raqqa’s central Clocktower Square
Bakery in Wilayat al-Raqqah
ISIS certificates distributed for female students who memorize Qur’an (Raqqa province)
A vehicle plastered with ISIS da’wah material
Statement from ISIS where they clarify that they will not interfere with the running of colleges in Raqqa
The Islamic police station in Manbij
The Islamic State carries out retaliation against a man who killed a man and then stole his money – Wilayat Raqqah
Secondary Sources:
Disillusioned foreign fighters abandon rebel ranks in Syria – FT
Inside an ISIS Prison/ A Syrian Doctor Shares His Story and Appeals to the World for Help
Syrian Jihadism 