There was a book by Dr Edward Howell on enzymes. He advocted a partially-raw diet supplemented by enzymes to get rid of some of the effects of a cooked diet.
I second that recommendation.
There aren't many well written books on eating a fully raw diet which includes raw animal foods.
However Dr. Howell's book on enzymes does have a lot of info in support of why raw foods are better.
I also recommend "VItamin K2 and The Calcium Paradox" by Dr. Kate Rheaume-Bleue. The book doesn't recommend raw anything. However she advocates all the foods we advocate and seek out to eat raw - pastured eggs, grass fed animals, the dark yellow/orange animal fats from pastured animals, etc. While she doesn't advocate eating them raw, she gives good reason for why we should include them. While also giving reference to Weston Price.