His masterpiece is the Ottoman hilye; a design template that includes eight distinct elements arranged aesthetically to provide for contemplative reflection and devotion.

The elements are: Ba makan (prelude); Gobek (belly); Hilal (crescent); Ko'eler (corners); Ayak (verse); Etek (foot); Koltukar (alleys) and Pervaz (frame).

[9] A hilye is a calligraphic panel containing a hadith-based text describing the Prophet Muhammad's physical appearance and attributes.

Hâfiz Osman incorporated such texts, which had been popular for some time, in a formal design that soon became standard for this art form.

Among his surviving works are copies of the Koran held at the Topkapi Palace Museum Library in Istanbul and the Nasser D. Khalili Collection.