- The Happiness Advantage: The Seven Principles of Positive Psychology That Fuel Success and Performance at Work (by Shawn Achor)
- The Road Less Traveled (by M. Scott Peck)
- The World Book of Happiness (by LEO BORMANS)
- I'm OK – You're OK (by Thomas Harris)
- The 7 Habits of Highly Effective People (by Stephen R. Covey)
- Don't Sweat Small Stuff (by Richard Carlson)
aug 1 2014 ∞
nov 20 2014 +
nov 20 2014 +