This week's entry is my humble tribute to one of the most inventive and influential musicians of the 20th century, the late Bo Diddley... The iconic rectangular guitar (aka "The Twang Machine") is missing, but the cover to 1961's Bo Diddley Is a Gunslinger is a gem just the same. It's one of a series of tongue-in-cheek images shot for Diddley's early-1960s albums on the Checker label. Read on, Daddy-O