As author Kim Campbell Thornton begins this Simple Solutions guide, "Dogs are known as man's best friend, but they don't come ready-made to take on this role." Socialization unlocks the key to the human-dog bond and explains how well-mannered, well-adjusted dogs are made (not born). A term used by canine behaviorists and trainers, socialization is a fancy five-syllable word for "getting friendly," which doesn't come naturally to all dogs. This handy...