this is not the end all, be all of BARF books, but it's an essential addition to your library if you have any interest in dog/cat nutrition. We have been feeding our dogs and cat a raw diet for the last 4-5 months and I couldn't be happier. Recently we lost our oldest dog (11yo/90lbs), and I am convinced this diet gave her 4 more months of happy, comfortable life. In march she began having issues with her kidneys. the vet's were at a loss, and we tried several different varietes of commercial food trying to control it. nothing worked...except BARF. Within a month of being on it everything went back to normal. My vet is not a fan of this diet (many aren't), but when he saw the lab results he couldn't agrue it wasn't working. Really up until the day she passed she was a happy, active dog, and I am so thankful we had the extra time with her. I'm not going to lie though; this diet is not cheap unless you have very good sources of "raw meaty bones". when we first started we were totally dependent on our grocery store for them, and it was costing us at least $12-15 a week, but now that we have found a BARF co-op in our area we save a lot of money (we spend about $30 a month), so it's just as cost effective as feeding Canidae or Innova (what we were feeding before the switch).