Overall, I would consider this a good but not great book. I was left with a vague feeling of incompleteness after reading it.
For example, it had several pictures of pigs with 'good muscling' (or 'nice topline' or 'great frame' or whatever). Granted, I'm a novice at pigs but it would be nice if it had pictures (preferably side-by-side) of an example of 'poor muscling' (or whatever) so I can see the difference.
I also found the 'butchering' section to be lacking. For example, when 'scalding' a carcass, it only talks about dipping the entire carcass into the hot water. Nowhere does it even mention dipping out the hot water and pouring it over the carcass (which is more manageable for a large pig). And the actual butchering (cutting up) part is minimal ('separate the carcass into the larger primal cuts with a butcher's knife').
My impression is that this book is geared more toward a small farmer wanting to raise a small herd for profit as opposed to a homesteader wanting to raise 1-3 pigs as food. It's just a different mindset. So - if you're a farmer - I would rate this book a '5'. A homesteader would still find it useful but not complete.
(I can't believe that pot-bellied pigs aren't even mentioned anywhere.)