Try "The Official American Numismatic Assoc Grading Standards for US Coins" (a Whitman Guidebook). It will HELP a lot, and while they don't go thru each grade - they do cover AG3,G4,VG8,F12,VF20,VF30,EF40,EF45,AUG50,AU55,AU58,MS60,MS63,MS65,MS67,MS70 for each coin (includes color pics) + lots of info on cleaning and just about everything else that has to do with grading. It's a very worthwhile book to have handy!!
Damn. Why is it the first time I’m reading this. We all should have one. Thanks. Can you get it at Barnes & Noble?