You can change your personal capacity for happiness. Research psychologist Sonja Lyubomirsky's pioneering concept of the 40% solution shows you how.
"Finally we have a self-help book from a reputable scientist whose advice is based on the best experimental data . . . The How of Happiness is smart, fun, and interesting—and unlike almost every other book on the same shelf, it also happens to be true." —Daniel Gilbert, Harvard University professor of psychology and author of Stumbling on Happiness

"A guide to sustaining your newfound contentment." Psychology Today

"Lyubomirsky's central point is clear: a significant portion of what is called happiness . . . is up for grabs. Taking some pages out of the positive psychology playbook, she coaches readers on how to snag it." The New York Review of Books

"Is lasting happiness attainable or a pipe dream? For the last eighteen years, University of California-Riverside professor of psychology Sonja Lyubomirsky has studied this question, and what she reports might even sway pessimists." U.S. News & World Report

"The right place to look for science-based advice on how to become happier." —Martin Seligman, author of Learned Optimism