I go by the general thought process of; If you know where or how to look, you can find the answer you want for free. These books just do the legwork for you. Google and Wikipedia are your friends. Just don't trust everything on them. Get second, third and fourth opinions when possible...
TV: '17 Ram 2500 Big Horn CCSB CTD 4x4
TT: '18 Wolf Pack Limited 325Pack13
Tow Acc: Andersen Ultimate Hitch 2 goose ball mount, AirLift 5000 bags and HD compressor system