Library services during winter break: Van Pelt-Dietrich Library Center will be closed on 12/25 and on 1/1-1/2, and will be open all other weekdays between 12/25 and 1/1. All other libraries will be closed from 12/25 to 1/4. Circulation of books and materials, as well as other services, will also be affected. See our Service Alerts for more details.