This popular book, now back in stock with a new cover design, rests on the assumption that you can be happier, no matter who you are or what your challenges. Happiness begets happiness. When a person is happy, the feeling ripples out to others nearby. Research has shown that happiness also leads to better health. Onethird of the population knows the secret to happiness that it's an inside job, not contingent on possessions, status, or even...