 The "editio princeps" was by Mai, as described above; the standard edition is the Teubner text by M. van den Hout (Leipzig, 1988).The Loeb Classical Library printed an edition of Fronto's correspondence with a facing English translation by C. R. Haines in two volumes (1919–1920); its text, though dated, is still of interest.Van den Hout also published a full-scale commentary in English (Leiden, 1999).