Outer Order, Inner Calm: Declutter and Organize to Make More Room for Happiness

I Thought It Was Just Me (but it isn't): Making the Journey from "What Will People Think?" to "I Am Enough"

Better Than Before: What I Learned About Making and Breaking Habits--to Sleep More, Quit Sugar, Procrastinate Less, and Generally Build a Happier Life

Surrounded by Idiots: The Four Types of Human Behavior and How to Effectively Communicate with Each in Business (and in Life)

Happier at Home: Kiss More, Jump More, Abandon Self-Control, and My Other Experiments in Everyday Life

The Sociopath Next Door

The Happiness Project, Tenth Anniversary Edition: Or, Why I Spent a Year Trying to Sing in the Morning, Clean My Closets, Fight Right, Read Aristotle, and Generally Have More Fun

The Science of Getting Rich (The Unabridged Classic by Wallace D. Wattles)

The Best of the Happiness Project Blog: Ten Years of Happiness, Good Habits, and More

The Psychopath Inside: A Neuroscientist's Personal Journey into the Dark Side of the Brain

Life in Five Senses: How Exploring the Senses Got Me Out of My Head and Into the World

Learned Optimism: How to Change Your Mind and Your Life

Secrets of Adulthood: Simple Truths for Our Complex Lives

Quiet: The Power of Introverts in a World That Can't Stop Talking

The INFJ Revolution: Reclaim Your Power, Live Your Purpose, Heal the World

The Powers of the Mind

The H Factor of Personality: Why Some People are Manipulative, Self-Entitled, Materialistic, and Exploitive—And Why It Matters for Everyone

Map of the Soul – Persona: Our Many Faces