Architectural bookmaking has been exposed to disciplinary debates, just as<br>building construction has been exposed to the charms of book culture. Dissecting<br>a wealth of books through fi ve conceptual tools, André Tavares analyzes the<br>material qualities of books in order to assess their crossovers with architectural<br>knowledge. The detailed history of Sigfried Giedion's Befreites Wohnen and<br>the two incarnations of the Crystal Palace in Hyde Park and Sydenham provide<br>a background that confronts us with the confi guration of the book as a unique<br>visual device.