Slights, snubs, emotional wounds, unprovoked attacks. They happen to us all. But aren't we supposed to just forgive, forget, and move on? Bearing a grudge is too negative, right? Wrong! Grudges, when held correctly, are an essential part of a healthy psychological diet. Internationally bestselling author and grudge guru Sophie Hannah has elevated the practice of grudge-holding to a fine art -- one that can improve the quality of our relationships at home, at the office, and everywhere else people might annoy or offend us. Blending the practical with the philosophical, How to Hold a Grudge examines the origins of grudges and shows readers how to harness their power to transform sources of resentment into wellsprings of affirming, long-lasting contentment. With this brilliant and hilarious guide, you will be able to grudge your way to your happiest, most optimistic, and most forgiving self.