These come up in a search on "paleo" in publication date sort. These 
three books are free only today.

All recipes have pictures in this one. Rare for a Kindle-only author 
to have actually made the recipes:

17 Day Diet. Paleo Diet Cookbook Recipes. Full Menus, for a 17 day 
diet Cycle. by Patricia Maria and Laurent Martin
http://www.amazon.com/dp/B007TBYQ9O

Wheat Free Diet Simplified: A Concise and Easy to Read Guide on the 
Dangers of a Wheat Belly Diet by Susan Stewart
http://www.amazon.com/dp/B007T9Z6J0

This one has been free for a few days now and announced here previously:

The No-Carb Revolution: Why the Secret to Losing Weight is to Fall 
Back in Love WIth Yourself! by John McLean
http://www.amazon.com/dp/B007JKAMZ2