This ongoing collection grew out of the the Pidgeon Audiovisual collection of illustrated talks by architects and related designers established in 1979 by Monica Pidgeon. Originally available at tape/slide sets, the 300+ titles are now available online to institutions via a subscription system, purchase of individual items on DVD, or on a pay-per-view basis. The site includes talks by such luminaries as Norman Foster, Richard Rogers, Frank Newby, Frank Lloyd Wright and Ludwig Mies van der Rohe.