This 378-page 2nd edition book published in the year 2000 provides drawings and photographs of 568 different styles of multipart porcelain insulators identified with M-numbers. In addition, it contains a wealth of information on old power lines, historic photographs of insulators in service, the history of electrical power, company histories, markings found on multipart insulators, patents, and much, much more. The spiral bound soft cover book ($25 ppd) has a beautiful color photograph on the cover showing old insulators in a beautiful mountain scene. The limited edition hardbound book is $35 ppd. Accept no fee PayPal or personal checks.