These came up in a search on "paleo". These books are free only today.
Paleolithic Slow Cooker: Simple and Healthy Gluten Free Recipes by
Amelia Simons
http://www.amazon.com/dp/B009W6B2AU
These were also free in the past:
The Ultimate Paleo Diet: Melt the Fats, Lose Weight & Get Lean in 2
Weeks by Rachel Rain Lee and Isabelle Ngin
http://www.amazon.com/dp/B008CBATZ0
Paleo Diet Mythbuster: 10 Reasons Why Paleo Makes Sense, Loses Fat
and Makes You Healthy by Don Fontano
http://www.amazon.com/dp/B009IK7UW4
The Paleo Diet. Why It Worked! (Eating Healthy Diet Foods) by Nicole Hayes
http://www.amazon.com/dp/B009QPXJJO
The Guide To Real Food: Volume 5 - Seafood by Scott Kustes
http://www.amazon.com/dp/B009SY8GQE