The Boston Public Library's Trustees' Library Collection is comprised of materials that were of interest to the Trustees through the 1970s. It includes such materials as working documents, correspondence, architectural plans, annual reports, books related to the Boston Public Library itself, and images related to the construction of what is now known as the library's McKim building.<br><br>Critical funding to support long-term preservation of and enhanced public access to Boston Public Library collections, including this one, was provided by the <a href="https://www.associatesbpl.org/" target="_blank">Associates of the Boston Public Library</a>.