إذا أعجبتك القصة فيمكنك القراءة أكثر في الكتابين الرائعين:
- The Happiness Advantage: The Seven Principles of Positive Psychology That Fuel Success and Performance at Work, by Shawn Achor.
- The Tipping Point: How Little Things Can Make a Big Difference, by Malcolm Gladwell
وعن نظرية النافذة المكسورة هنا:
- [https://en.wikipedia.org/wiki/Broken_windows_theory](http://Broken Window Theory)