 Alexander wrote commentaries on most (but not all) of Aristotle’s treatises.  His commentaries on the Prior Analytics (Book 1), Topics, Meteorology, and the work On Sense and Sense Objects have survived. Fragments from his lost commentaries on the Posterior Analytics and Physics have been collected and edited (in Moraux 1979 and Rashed 2011, respectively). A long excerpt from his lost commentary on Generation and Corruption, extant only in the Arabic tradition, is now available in English translation (Gannagé 2005). Of the commentary on the Metaphysics that is transmitted under his name, only the first five books (Alfa to Delta) are genuine. Since Praetcher (Praetcher 1906) the commentary on the other books (Epsilon to Nu) is generally attributed to Michael of Ephesus. This attribution is now vindicated (in Luna 2001) except for book Epsilon, which should be attributed to Stephanus of Alexandria (Golitsis 2016b). The commentary on the Sophistical Refutations, traditionally attributed to Alexander, is spurious. It should be attributed to Michael of Ephesus (Ebbesen 1981, I: 268–285).