| Library | Aris Format | Aris Age | COUNT |
| Middlesex - Bedford Campus | Audio | Adult | 434 |
| Middlesex - Bedford Campus | Books | Adult | 25063 |
| Middlesex - Bedford Campus | Books | Childrens | 57 |
| Middlesex - Bedford Campus | Downloadable audio | Adult | 2082 |
| Middlesex - Bedford Campus | E-books | Adult | 27106 |
| Middlesex - Bedford Campus | Materials in electronic format | Adult | 90 |
| Middlesex - Bedford Campus | Miscellaneous | Adult | 7897 |
| Middlesex - Bedford Campus | Miscellaneous | Childrens | 1 |
| Middlesex - Bedford Campus | Print Serials | Adult | 327 |
| Middlesex - Bedford Campus | Video | Adult | 3109 |
| Middlesex - Lowell Campus | Audio | Adult | 346 |
| Middlesex - Lowell Campus | Books | Adult | 18980 |
| Middlesex - Lowell Campus | Books | Childrens | 7 |
| Middlesex - Lowell Campus | Miscellaneous | Adult | 427 |
| Middlesex - Lowell Campus | Print Serials | Adult | 76 |
| Middlesex - Lowell Campus | Video | Adult | 1196 |
| Total | 87198 |