Whatever book you pick up, it’s likely to make you feel better—maybe even a whole lot better. “In a secular age, I suspect that reading fiction is one of the few remaining paths to transcendence, that elusive state in which the distance between the self and the universe shrinks,” Ceridwen Dovey writes, in “Can Reading Make You Happier?,” which was published in 2015. Dive into the research behind the therapeutic effect of books: