Motorbooks Calendar HarleyDavidson Motorcycles 2002 Author:Jeff Hackett, Nick Cedar Now in its eighth year, our calendar of Harley-Davidson motorcycles offers another batch of beautifully restored or maintained Panheads, Knuckleheads, Shovelheads, and Evos. A must-have for all Harley-Davidson enthusiasts, significant dates in the history of the company and its motorcycles are noted on the calendar.