-Oxford Companion to Architecture (includes: A Dictionary of Architecture and Landscape Architecture; the Oxford Companion to the Garden)
Oxford Art Online (8 users)A comprehensive and authoritative guide with extensive surveys and in-depth articles on the history of art; provides links to museums, galleries, and art collections around the world, as well as images. Available through this site are Benezit Dictionary of Artists, Grove Art Online, The Oxford Companion to Western Art, Encyclopedia of Aesthetics, and The Concise Oxford Dictionary of Art Terms.
"The Encyclopedia of Urban Studies serves as an introduction to topics of significance in urban studies for an audience that includes undergraduate students, beginning graduate students of urban studies and the related urban disciplines, a broader public that has an interest in the new urban world, and even established teachers and scholars who are exploring new areas of study." [from the publisher]