Joy is stamped on coffee mugs, sewn onto decorative pillows-even displayed on dish soap. But what if there's a deeper power and purpose to this mighty virtue? Through vulnerable storytelling, a difficult diagnosis, and a good dose of humor, Margaret Feinberg reveals how joy is more than whimsy. It's the weapon you can use to fight life's battles. No matter what your circumstances, you can practice defiant joy. When you do, you will embrace a life that's richer and fuller than you've ever known before-a life radiant with joy.