I'm up to around page 100 so far - wish I had time to do nothing but read. He obviously has done his research, literally all over the world. I wish every dog owner (or prospective owner) would read this - it may give some pause before they run off to the local pet store for a "cute" or "pretty" dog, and others a truckload of questions before they head to the local "breeder". (My pardons to any respectable breeders out there - I'm referring to the "backyard" variety, who distribute litters like cartons of disposable objects). So many topics he's covered already - DNA, genetics, what we've (humans) done to dogs (breeding for looks vs function), and now he's discussing vaccines. Can't wait to keep on reading!!