 Long was the president of the Society for Medieval and Renaissance Philosophy.Long has published nine books, including "The Life and Works of Richard Fishacre, O.P., Prolegomena to the Edition of his Commentary on the "Sentences"", published in 1999; editions of parts one and two of the second book of "Fishacre's Sentences Commentary" (2008 and 2011); "Adam of Bockenfield, 'Glossaae super De vegetabilibus et plantis'