Thank you all for the astoundingly large response thus far. I am going to be sorting through the list so far provided for a little while. Lately my go to book on the matter has been "Flight Testing Homebuilt Aircraft" by Vaughan Askue and am specifically looking for something that goes a little more indepth on the professional side of things. From looking through those mentioned thus far, a couple stand out as perhaps fitting the bill. To what Genghis the Engineer said, certainly in my option, I agree with the sticky idea for reviews.
NES (NeverEnoughSpeed)