Shackleton Bailey's Horatius text is a university set text used world-wide; in the US American market in particular, it became standard reading for students of Latin. From the first edition in 1985, Shackleton Bailey improved and updated his work with each new edition, especially with the 4th revised edition in 2001. Thus the editor has put his Horatius text on course to continue being used and disseminated in the coming decades.