* Overcoming Depression: A Step-by-Step Approach by Dennis Greenberger and Christine A. Padesky
* The Mindful Way Through Depression by Jon Kabat-Zinn
* The Depression Cure by Stephen S. Ilardi
* Feeling Great: The Revolutionary New Treatment for Depression and Anxiety by David D. Burns
* The Power of Habit: Why We Do What We Do in Life and Business by Charles Duhigg
* The Happiness Advantage: The Seven Principles of Positive Psychology that Fuel Success and Performance at Work by Shawn Achor
* The Little Book of Stoicism by Ryan Holiday
* Man's Search for Meaning by Viktor Frankl
* The Five Love Languages: The Secret to Love that Lasts by Gary Chapman