<p><em>Principles of Art History Writing</em> traces the changes in the way in which writers about art represent the same works. These differ in such deep ways as to raise the question of whether those at the beginning of the process even saw the same things as those at the end did. Carrier uses four case studies to identify and explain changing styles of restorations and the history of interpretations of selected works by Piero, Caravaggio, and van Eyck.</p>