NAMED ONE OF THE 100 MUST-READ BOOKS OF THE YEAR BY TIME MAGAZINE “A cheerful, mischievous rebuke to all that spiritual sincerity and floaty nonattachment and sugary loving kindness” (The Wall Street Journal), this first and only comprehensive examination of the universal, but widely misunderstood, practice of grudge-holding will show you how to use grudges to be your happiest, most optimistic, and most forgiving self. Secretly, we all hold grudges, but most of us probably th