Here is a link to my reports page on this site....look down the left column and you will see an article I wrote a number of years ago about ledge fishing....should help get you started: Kentucky Lake Fishing Report - Bass, Crappie, Bluegill, Shellcracker, Catfish

If you really want to learn ledges, I do a ledge teaching trip that involves 7-8 hours classroom and 3 hours on the water...but the article will certainly get you pointed in the right direction.

Dave