Listmania!
Bestselling Happiness Books
By an Amazon.com customer
Happier: Learn the Secrets to Daily Joy and Lasting FulfillmentHappier: Learn the Secrets to Daily Joy and Lasting Fulfillment by Tal Ben-Shahar
Buy new: $14.93 / Used from: $8.95
Works at Harvard.
The How of Happiness: A New Approach to Getting the Life You WantThe How of Happiness: A New Approach to Getting the Life You Want by Sonja Lyubomirsky
Buy new: $10.20 / Used from: $5.62
A happiness researcher.
Stumbling on HappinessStumbling on Happiness by Daniel Gilbert
Buy new: $10.85 / Used from: $1.99
Popular writer.
Happiness: Unlocking the Mysteries of Psychological WealthHappiness: Unlocking the Mysteries of Psychological Wealth by Ed Diener
Buy new: $16.47 / Used from: $11.99
The most well-known happiness researcher.
Happiness Now!: Timeless Wisdom for Feeling Good FASTHappiness Now!: Timeless Wisdom for Feeling Good FAST by Robert Holden
Buy new: $10.17 / Used from: $1.87
I believe this guy is in England somewhere.
The Art of Happiness: A Handbook for LivingThe Art of Happiness: A Handbook for Living by Dalai Lama
Buy new: $15.57 / Used from: $0.01
Buddhism and happiness.
Authentic Happiness: Using the New Positive Psychology to Realize Your Potential for Lasting FulfillmentAuthentic Happiness: Using the New Positive Psychology to Realize Your Potential for Lasting Fulfillment by Martin Seligman
Buy new: $11.21 / Used from: $5.55
VERY well-published in the positive psychology literature.
Happy for No Reason: 7 Steps to Being Happy from the Inside OutHappy for No Reason: 7 Steps to Being Happy from the Inside Out by Marci Shimoff
Buy new: $18.96 / Used from: $0.64
Chicken Soup and The Secret contributor.
The Secret to True Happiness: Enjoy Today, Embrace TomorrowThe Secret to True Happiness: Enjoy Today, Embrace Tomorrow by Joyce Meyer
Buy new: $17.99 / Used from: $0.01
On TV.
Become a Better You: 7 Keys to Improving Your Life Every DayBecome a Better You: 7 Keys to Improving Your Life Every Day by Joel Osteen
Buy new: $18.00 / Used from: $0.09
On TV.
What's Age Got to Do with It?: Living Your Healthiest and Happiest LifeWhat's Age Got to Do with It?: Living Your Healthiest and Happiest Life by Robin McGraw
Buy new: $12.78 / Used from: $0.01
Her husband is on TV.
Finding Happiness in a Frustrating WorldFinding Happiness in a Frustrating World by Jim Johnson
Buy new: $10.76 / Used from: $6.49
My personal favorite. Read it and you'll see why.