| Series | Extent | Year | Author | Title |
| PMHRA 20 | — | 2018 | Arnold McMillin | Breaking with Tradition |
| PMHRA 7 | 160pp | 1975 | Robert M. Flores | The Compositors of the First and Second Madrid Editions of 'Don Quixote' |
| PMHRA 6 | 270pp | 1974 | Frederick John Stopp | The Emblems of the Altdorf Academy |
| PMHRA 3 | 380pp | 1971 | D. J. A. Ross | Illustrated Medieval Alexander-Books in Germany and the Netherlands |
| PMHRA 19 | — | 2015 | Arnold McMillin | Spring Shoots |
| PMHRA 18 | 1150pp | 2009 | Arnold McMillin | Writing in a Cold Climate |