For a good part of the 20th century, the French Riviera was home to some of Europe's most celebrated artists. This book covers 28 museums on the Riviera, discussing the works of such masters as Picasso, Renoir, Matisse and Cocteau. Museum hours, telephone numbers and historical information are combined with black-and-white and color photographs of many of the works you will see.  (FRN133, $19.95)