GDG- Artillery of Gettysburg Book

[Ed Oechsle]

I'm relatively new to the battle of Gettysburg, and the Civil war, but have 
really been captured by it. In the past 5 years, Ive been there three times, 
and have read and reread almost everything i can get my hands on about it. I 
intend to make a trip there evry year.Maybe even more than one, since it is 
only a couple of hours away.
 Anyway, I'm really interested in knowing a lot more about how artillery 
could affect the battles, given the state of the weapons at the time. It is 
very difficult to vizualize what it was like, when you stand there now, not 
knowing exactly what these weapons were capable of.
  Do you know of any way that I can get more educated about this aspect of 
the battle, other than reading your book ? Which I intend to do.
                         Ed Oechsle