Tamar Zinn blogs about several summer shows in New York featuring abstract painting including: Eccentric Abstraction, curated by Bill Weiss, at Frosch & Portmann featuring work by David Hayward, Leslie Wayne, Mamie Holst, Richard Allen Morris and Bill Weiss (through August 3); Starting Out: 9 Abstract Painters 1958-1971 at Tibor de Nagy, featuring works by by Edward Avedisian, Darby Bannard, Friedel Dzubas, Paul Feeley, Helen Frankenthaler, Jane Freilicher, Ralph Humphrey, Kenneth Noland, and Kendall Shaw (through August 1); the Summer Invitational at Elizabeth Harris featuring works by Rich Klauber, Joanne Mattera, Paul Mogensen, Gary Peter, and Sarah Walker (closed July 25), and Color as Structure at McKenzie Fine Art featuring works by works by Paul Corio, Richard Garrison, Rob de Oude, Mel Bernstine, Jason Karolak, Maureen McQuillan, Holly Miller, Alain Biltereyst, Martha Clippinger, Richard Roth, Cordy Ryman, Deborah Zlotsky, Kate Shepherd, Elise Ferguson, Don Voisine, and Richard Caldicott (through August 1).