The Boston University School of Theology Library is located in the heart of the Boston University Campus, at 745 Commonwealth Avenue. The building is adjacent to the Marsh Chapel, on the west side of the plaza. The library is on the second floor. To enter the library, you must use the doors closest to the elevators. Doors located in other sections of the library are for emergency use only. It is strongly recommended, if at all possible, to take public transportation while visiting the School of Theology Library.