Wheat Belly, Dr William Davis (obviously)
Wheat Belly Cookbook, Dr. William Davis
Why We Get Fat, Gary Taubes (Got me going on this whole thing)
Good Calories, Bad Calories, Gary Taubes (had to read it twice it's full of great info)
The poor misunderstood calorie, William Lagakos (poorly edited but useful info)
Death by Food Pyramid, Denise Minger (Not as straightforward WB as you might think. Still has very good recommendations backed up with lots of references)
Fat Chance, Dr. Robert Lustig (Not recommended, not helpful in any way. Sugar's bad m'kay?)
Primal Body, Primal Mind, Nora Gedgaudas (great info very helpful)
Paleo Solution, Robb Wolf (seems to be the guy who started this trend)
How to Live Longer and Feel Better, Linus Pauling (he was right then and he's still right now)
Don’t Die Early, Rocky Angelucci (info written in understandable language. Lots of helpful ideas)
500 Paleo Recipes, Dana Carpender (dairy free too)
Cholesterol Clarity, Jimmy Moore (Excellent for people just learning about the subject)
Primal Blueprint, Mark Sisson (on order, haven't read it)
Fat Head, The Movie, Tom Naughton (Available on Hulu and Netflix. This gets people motivated)The Art and Science of Low Carbohydrate Performance, Jeff Volek and Stephen Phinney (on order)
The Art and Science of Nutritional Ketosis, Stephen Phinney(haven't read it)
Genocide: How Your Doctor's Dietary Ignorance Will Kill You!!!!, Dr. James Carlson (haven't read it)
Hunter-Gatherer Within: Health & the Natural Human Diet, George Diggs Jr., PhD. (haven't read it)
National Geographic Magazine, August 2013, Sugar Love: A Not So Sweet Tale (Sugar's bad, m'kay?)A Low Carbohydrate, Ketogenic Diet Manual (pamphlet), Dr. Eric C. Westman, MD, MHS ($4 pamphlet, very useful)
Obesity, Evaluation and Treatment Essentials, Edited by G. Michael Steelman and Eric C. Westman (Worth the $150 cost. Info for medical doctors)
Diabetes Epidemic & You by Joseph R Kraft (Will change your idea about diabetes)
Please feel free to add to the list or comment on any that I've listed.