They are probably very good for PB eaters.
You can get an idea of the recipes (and some free) at the authors blog:
I have not considered buying the books as the author seems to think that olive oil, salt, soy sauce, peas, sweet potato, mayonnaise, paprika, tomato, cayenne pepper, honey, flaxseed, protein powder, chilli, tomato pasta sauce, capsicum, maple syrup, arrowroot, butter, chocolate, millet flour and goats cheese are all paleo ingredients.
I do not
The "Seven Deadly Sins"
• Grains (wheat/rice/oats etc) . . . . . • Dairy (milk/yogurt/butter/cheese etc) . . . . .• Nightshades (peppers/tomato/eggplant etc)
• Tubers (potato/arrowroot etc) . . . • Modernly palatable (cashews/olives etc) . . . • Refined foods (salt/sugars etc )
• Legumes (soy/beans/peas etc)