- The Happiness Project: Or Why I Spent a Year Trying to Sing in the Morning, Clean My Closets, Fight Right, Read Aristotle, and Generally Have More Fun
- Better Than Before: Mastering the Habits of Our Everyday Lives
- The Four Tendencies: The Indispensable Personality Profiles That Reveal How to Make Your Life Better (and Other People's Lives Better, Too)
- Happier at Home: Kiss More, Jump More, Abandon a Project, Read Samuel Johnson, and My Other Experiments in the Practice of Everyday Life
- Outer Order, Inner Calm
- Debbie Ford
- Jen Lancaster
- Howard C. Cutler
- Elizabeth Wurtzel
- Lisa Lillien
- Barbara Sher
- Cheryl Strayed
- A.J. Jacobs
- Elaine N. Aron
- Martin E.P. Seligman
- Daniel H. Pink
- Barbara Ann Kipfer
- Peter Walsh
- Alexandra Horowitz
- Daniel Todd Gilbert
- Thérèse of Lisieux
- Eleanor Brown
- Susan Cain
- Sharon Salzberg
- Joan Anderson