Vanished Smile: The Mysterious Theft of Mona Lisa.  By R. A. Scotti

Sometime between August 20 and August 22, 1911, the Mona Lisa was stolen from the Louvre.  

Who took her?  A lone madman obsessed with the painting?  A gang of international art thieves?  Parisian artists  - Picasso among them - who resented museum art because it worked to suppress new ideas?  

This is a perfect summer non-fiction book - light and lively, and very enjoyable.  Recommended.

 A bonus: the book includes pictures of the accused and the guilty, reprints of newspaper articles, contemporary postcards and paintings. and an extensive bibliography.