The library is properly called the "Woburn Public Library." The Winn family generously paid to construct the building and provide an endowment for the library, but specifically requested that it not be named for them. Nevertheless, Richardson signed his plans "Winn Library," and it remains known in architectural circles as "Winn Memorial Library." The inscription in the entrance porch reads: "This building was erected in memory of Jonathan Bowers Winn from funds bequeathed by his son, for the use, benefit and improvement of the people of Woburn." It was built between 1876 and 1879, and was the first in a series of libraries designed by Richardson. In it he established a characteristic, basilical plan for such buildings: an off-axis entrance marked by a staircase tower; a vestibule opening into a high-ceilinged reception area; reading room adjacent to the stacks; and an optional art gallery. The building was designated a National Historic Landmark in 1987 in recognition of its architectural significance. The library's main facade presents a long, two-story stack wing to the west, slit windows on the first story with a strip of clerestory windows separated by columns above, all below a peaked roof. The gable-ended crossing features a trio of arched double windows on the first story, a line of seven arched single windows above, and an attached High Victorian tower. On the opposite side of the tower is the arch of the entrance porch. The easternmost section is an attached two-and-a-half-story octagonal wing that houses the museum. The building's polychromatic exterior is constructed of brownstone trimmed with lighter stone, sometimes laid in bands, and set in alternating colors over the main arches and the entrance porch. This is all beneath a red tile roof trimmed with bronze cresting, with crocketed ribs on the roofs of the tower and museum. The interior features a reception room/picture gallery with the museum to the right and a trio of reading rooms to the left. Beyond the reading rooms are the 2-story stacks, that feature a tall 6-arch arcade on each side, topped by a wooden barrel-vaulted ceiling. There are curved staircases at the four corners of the stacks, in addition to the main stair in the tower. A statue of native son and notable scientist Sir Benjamin Thompson, Count Rumford, stands on the main lawn before the library.
