some 30 years ago when I first obtained my FAA Airframe and Powerplant license (A&P) the FAA's check airman was stunned at the fact that I was very well versed in fabric covering...
(something that even 30 years ago was not exactly the sort of thing everyone knew how to do)
personally I find fabric covering MUCH easier than iron on covering, although certainly more time consuming the finished result is MUCH nicer and stronger.
if you google 'RC silk and dope' you'll find tons of info including a couple of good you tube videos.