"Pennsy Power" books, Volumes I, II and III

Can anyone list a general summary of Stauffer's three Pennsy Power books?
I cant seem to find anything on-line..
Which one would contain the most info about the PRR T1?

thanks!
Scot

I have never seen (and didn't know of the existence of) III. I and II are both basically picture books, with captions that frustratingly leave out information (many are undated) and only a few pages of text. (But great pictures: when I became seriously interested in railroads I lived in Pittsburgh, and these were some of the first books I pored over to learn a bit of the history!)

I covers only steam and electric locomotives. On the T-1, it has a four-page introductory essay and six pages of photos (all b&w, half-page or smaller).
II adds coverage of m.u. cars and diesel locomotives, so adds only a small number of extra steam and electric locomotive photos: two pages of T-1 pics. (For something truly bizarre, it includes artwork - credited to the PRR - of what a Baldwin-Westinghouse steam turbine electric basically similar to those built for Chessie would have looked like styled for PRR!)

They are nice books, and the photos are generally good quality.

I found Pennsy Power III on Amazon.com about a year ago. It was a real eye opener with things I've never seen before. My only regret is this there are no color pictures. I've only seen a few colors photos of T-1s and none of the S-2 or Qs.

I own I & II, never seen three. One has a fair technical section on the T-1 with a few pages of pics. Two has no tech info and practically no shots of the T-1. Unlike a lot of modern steamers, there are a lot of T-1 pics on the web in the public domain. Dig deep and they're yours...