John Chervinsky, who will exhibit at the Davis Orton Gallery from August 26 to September 19, is in three major group exhibitions this summer:  “In Review” at Gallery 339 in Philadelphia; “Seeing is Believing,” at the Concord Art Association, curated by Dana Salvo of the Clark Gallery and  in “Found: Discoveries at FotoFest and PhotoNOLA” at John Cleary Gallery in Houston.