List of Relevant Works
This was considered a general introduction to Galenic medicine (See edition by Palmieri (1989)). On Sects for Beginners, however, was the eisagogē par excellence. The introduction of the commentary on On Sects for Beginners is a general introduction to the work of Galen. Temkin (1932) was the first who cast light on this matter. Agnellus provides a complete commentary in Latin, the introduction to it by a certain John, probably of Alexandria,82 fragments of Archelaos, and one of an anonymous author, perhaps Angeleuas. Stephen alludes to his own commentary on it. There are the tabulae, Vindobonensis med. gr. 16, fols 329r–332r, and the Arabic summary (See Pormann (2004) and Overwien (2013: 91ff.)). John the Grammarian wrote a commentary that was translated into Arabic (Sezgin (1970: 159)). Abū al-Faraj ibn al-Ṭayyib also wrote a commentary (Garofalo (2008b)). Abū al-Faraj ʿAlī al-Ḥusain ibn Hindūs (d. c. 1029–32) wrote a re-elaboration of Alexandrian materials (See Overwien (2015)).

[2] Art of Medicine
This is the most cited work of Galen’s, alternative titles being Technē, Mikra Technē, Microtegni (Boudon (2000: 274)). Commentaries, which were lost in the course of the transmission, were written by Stephen, Palladios, and John of Alexandria. There are extant commentaries by Agnellus, al-Ṭayyib, and Ibn Riḍwān. The latter was translated by Gerard of Cremona. There are also tabulae: Vindobonensis med. gr. 16, fols 332r–336v, and Neapolitanus Orat. CF 2, fols 332rff.
