“What is happiness and how can I find it?” may be one of the most frequently asked questions there is. Perhaps that’s because it is so hard to experience lasting happiness.In The Saints’ Guide to Happiness, Robert Ellsberg suggests that some of the best people to show us are holy men and women throughout history—from St. Augustine to Flannery O’Connor, Thomas Merton to St. Theresa of Avila and Mother Theresa.These people weren’t saints because of the way they died or their visions or wondrous deeds. They were saints because of their extraordinary capacity for goodness and love, which—in the end—makes us happy.