This photo essay, of the annual group show at Sideshow Gallery in Williamsburg, focuses on the stunning variety of Abstract / Non- Objective art on view. The show is vast. It presents 489 artists and little more than 520 works. Andrew duPont Anne Russinof (top) and Ronnie Landfield Bill Jensen Carolanna Parlato Chris Martin Clara Stack Cynthia Hartling David Kapp Debra Mintz Don Christensen (l) and Emily Berger Don Christensen Don Voisine Installation view Installation view Installation view Eric Ansel Gudrun Mertes-Frady Heather Garland (l) and Gary Petersen James Biederman Jeanne Thomsen Jeffery Cortland Jones Jim Wilkinson John Schofield Gulians Karre Rafoss Kazimira Rachfal Kystyna Borkowska Larry Webb Louise P. Sloane Lynette Lombard Marianne Gagnier Marthe Keller Osamu Kobayashi Peter Bonner Richard Snyder ...