What is a good book on MIG welding that I can buy here in the US to give me some basic information?  This forum is a fantastic help, but I don't like to have to post and wait for a reply every time I want to know the gap I should use when butt welding two pieces of .187 inch steel together.  I'm looking for basic formulas, rules of thumb, useful reference information.  Anyone have any suggestions for a good reference?
				
			



