Teary, big-eyed orphans and a multitude of trashy knockoffs epitomized American kitsch art as they clogged thrift stores for decades. When Adam Parfrey tracked down Walter Keane--the credited artist of the weepy waifs, for a San Diego Reader cover story in 1992--he discovered some shocking facts. Decades of lawsuits and countersuits revealed the reality that Keane was more of a con man than an artist, and that he forced his wife Margaret to sign his...