He "authored around 200 works in
Turkish,
Persian, and
Arabic. His works include commentaries on the
Qur'an,
treatises on hadith,
Islamic law,
philosophy and theology (
kalam), logic,
Sufism, ethics, history, several books on Arabic and Persian grammar, literature, and a small diwan of poetry." His most famous history work is the
Tevārīh-i Āl-i Osmān "The Chronicles of the
House of Osman", a history of the Ottoman Empire which provides the most original and important source material now extant on the reigns during which he himself lived. In philosophy and theology, he was a
Maturidi theologian-philosopher who followed some opinions of
ibn Arabi and anticipated some theories of
Mulla Sadra. Kemalpaşazâde also wrote a famous history of the Hanafi school of
fiqh entitled
Risāla fī Ṭabaqāt al-Mujtahidīn "The Treatise regarding Biographies of Jurists". ==Fatwas against the Safavids==