Empty walls? If you are in the market for art, this is a good weekend to be in Chicago. The Judy A. Saslow Gallery which deals in "global outsider and contemporary art" is having a one weekend only sale beginning today. 35 artists are included (Giordano Gelli, left) and reductions are up to 70%. Vision 11, a two week event celebrating Chicago's place in the art world kicks off tonight. 35 galleries will participate. Free shuttles will run between River North (Superior/Franklin) and West Loop/Fulton Market (Fulton Market/Carpenter) from 6-9pm this evening. Full details on Vision 11 and all its events available here.