In Malerei, Fotografie, Film (László Moholy-Nagy & Walter Gropius, 1927.)
The whole book is free to download, along with other Bauhaus works, at Bibliothéque Kandinsky.
via Messy Nessy Chic.
Over 250 art books free to browse and download, courtesy of Getty Publications.
Image taken from Modern Architecture: A Guidebook for His Students to This Field of Art, by Otto Wagner.
Gorgeous (and cheap!) travel guides, by Herb Lester Associates.