Greg Bennick recently published an interview with Mike Niespodzinski in ErrorScope, the official publication of The Combined Organization of Numismatic Error Collectors of America (CONECA). I was intrigued by the illustrations of various error coin books, periodicals, catalogs, price lists and ephemera, many of which I hadn't seen before. Greg kindly sent the images along for publication, and here they are in no particular order. Thank you! -Editor