For the November art exhibition at the Charlotte & William Bloomberg Medford Public Library, Peter L. Rosenberg is collaborating with Julian Chagrin on a show that is a study of human emotions during stressful times. Through evolving cultures, relationships, cameras, and a wide range of photographic interests, has been practicing photography since the summer of the U.S. Bicentennial in 1976. His photography is personal and, in a sense, autobiographical. The artists’ work will be on view in the library’s second-floor gallery all month during regular library hours.