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Photograph: Courtesy Edelman ArtsScott Covert, “The Dead Supreme” at Edelman ArtsFrottage—no, not as in dry-humping, but rather as in the Surrealist technique—is given a celebrity-obsessed update in these works, which feature rubbings taken from the headstones of famous and infamous figures. Through Aug 20
Photograph: Courtesy of Regina Rex“Practices Remain” at Regina RexThis “roving” show, which began in Miami, aims for the gray area between finished and unfinished. Through Aug 26
Photograph: Jason MandellaJonathan Allmaier, “Pointing Paintings, Bump Paintings and Key Paintings” at James Fuentes LLCAllmaier’s lively paintings evince a peculiar mix of image, abstraction, process and animism. Fri 10–Sept 30
Photograph: Courtesy the artistMark Flood, "The Hateful Years" at Luxembourg & DayanFor more than 30 years now, artist Mark Flood has been working in Houston, creating memorably daft mixed-media text paintings and collage remixes of cigarette ads and gossip magazine covers—all of which in some way takes the pulse of that heart of darkness called middle America. This survey focuses on a particularly fruitful period for his work, the 1980s: the decade of Reagan and the beginning of the country's out-of-control swerve to the right.