Reichheld (The Loyalty Effect), director emeritus of Bain & Company, believes that companies today over-emphasize short-term profits at the expense of employees and customers. Reichheld offers six loyalty principles (employed by top-shelf companies such as Enterprise-Rent-a-Car and Dell Computer), including: "reward the right results"; "listen hard and talk straight"; "preach what you practice." Company profiles with comments from executives are particularly useful, though some examples have already been studied extensively (Southwest, Cisco). Nonetheless, the book makes a solid contribution. (Sept. 14)