This guide is an introduction to the unique resources available to the UO community that can be found in the Architecture and Allied Arts Library. Many books, drawings, and works of art were gifted in the early years of the school by the professors, architects, artists, and visiting lecturers who were interested in building a major resource for research and instruction. Throughout the years, librarians have diligently collected and preserved various artifacts connected with the school's history. In 1991, a major bequest from Marion Dean Ross, former chair of the Art History department, established an endowment which has been dedicated to acquiring rare architectural books. In 2014, the availability of added space for the A&AA Library in enabled more space for these valuable resources and greater ability to access and use them for instruction and research.