There have been many worthy books on the Keystone Film Company, Mack Sennett, and Mabel Normand-not to mention the countless volumes on Charlie Chaplin. But, despite their ongoing popularity, there has never been a full-length book devoted solely to the Keystone Cops.At least, not until now.A dozen or so film historians have come together to document and assess those clumsy constabularies. Containing insights into the Cops' place in cinema history,...