Library holdings (April 2009)
| Print books* | 2,140,245 |
| e-books | 366,999 |
| Print journals | 6,842 |
| e-journals** | 43,217 |
| Micromaterials | 1,926,931 |
| Non-print (e.g., maps, videos, slides) | 772,161 |
| Article databases | 528 |
* Volume equivalent, including monographs, print journals, bound periodicals and government documents.
**Includes aggregated e-journals.