A slim, academic study, featuring 75 black-and-white engravings, paintings and illustrations. This is not an architectural guide to St. Petersburg in the traditional sense. Instead of studying the buildings, parks, and bridges of the historic city, Kaganov delves into changing ideas about spatial representation, looking at the way St. Petersburg's urban spaces -- and the depiction of them in art and literature-- have changed over the centuries.  (RUS42, $57.95)