The library is the heart of any academic institution. Nashotah House strives to make its library as "user-friendly" and efficient as possible. An initial orientation tour is conducted for all new students. The library collection, approximately 100,000 volumes and 300 current periodical subscriptions, is primarily theological, with substantial holdings in church history, philosophy, and material supporting other areas of the seminary's curriculum.

Special collections have a number of interesting items, including the Underwood Prayer Book Collection and archival material relating to the history of Nashotah House and the Episcopal Church in Wisconsin. A compact disc collection in Church music and a video collection are also available.

All stack areas, except for special collections, are open. Large, utilitarian study carrels are available for all students. The building, which is fully accessible to the disabled, also houses a seminar room and a children's room with a sizeable collection of children's books.

The Nashotah House Library is open to the general public from 8:30 a.m. to 4:20 p.m., Monday through Friday, except during holidays. Faculty and seminarians have access to the library twenty-four hours every day.