Paris Disparu

I'll have to get my hands on this before I go to Paris in the spring. I adored all the Atget photos of Paris as it was, although the changes there are less glaring than in other world cities. This book of walking tours sounds like it's right up my allée:
"A Walking Guide
to the Transformation of Paris "
by Leonard Pitt
Published in Paris - 2002

Walk through the heart of Paris with hundreds of photos, maps, and engravings in hand to discover a Paris that no longer exists.