Looking for some advice on "the" definitive book on Parkers.

As many of you know, I'm an English gun guy, but I starting shooting with this gentleman who seems real passionate about Parker.

He had a beautiful old 16 the other day but when I asked about it, I was quickly lost in DH-this and something else-that.

Amazon has a few titles, so I'm looking for some feedback on a a couple y'all would suggest.