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This Library Research Guide offers a variety of digital and print resources on the subject of historic architectural conservation and preservation. The guide has been organized into the following subfields: reference books on historic American architectural styles; practical guides and tools for conservationists and preservationists; publications that deals with the philosophy, theory, and ethics of the fields; histories of conservation and preservation; technology and documentation of historic sites and preservation; material conservation; sustainability and preservation; the economics of preservation; case studies of recent conservation and preservation projects; and various online research resources and professional tools.