ORIGINAL: krossk
You might also try to locate a copy of "Covering R/C Airplanes" by Faye Stilley. There are/were? 2 volumes published, but the first may not be available any longer. It's a great book on everything from basic covering to seriously advanced trim and other techniques. It was an invaluable learning tool when I started covering.
Find these books at Tower. Stock numbers LXZ877 & LXZ866