In her most recent post on the 2013 Miami Art Fairs, Joanne Mattera photoblogs a fascinating selection of mid-century geometric abstraction on view at the fairs. The post includes works by Lygia Clark, Geraldo de Barros, Willys de Castro, Hercules Barsotti, Samson Flexner, Ana Sacerdote, Maria Friere, Alice Trumbull Mason, Julie Knifer, Shirley Jaffe, Leon Polk Smith, Gene Davis, Kenneth Noland, Charmion von Weigand, and Thomas Downing.