Books
A Primer in Positive Psychology; Christopher Peterson
Flourish: A Visionary New Understanding of Happiness and Well-Being; Martin Seligman
The How of Happiness: A New Approach to Getting the Life You Want; Sonja Lyubomirsky
The Happiness Hypothesis: Finding Modern Wisdom in Ancient Truth; Jonathan Haidt
The Power of Habit: Why We Do What We Do in Life and Business; Charles Duhigg
Websites
Greater Good in Action: Science based practices for a meaningful life
Behavioral Positivity 