Twist, Lynne (2003) The Soul of Money: Reclaiming the Wealth of Our Inner Resources. WW Norton: New York, NY.
Hallsmith, Gwendolyn and Bernard Lietaer (2011) Creating Wealth: Growing Local Economies with Local Currencies. Gabriola Island, BC: New Society Publishers.
North, Peter (2010) Local Money: How to Make It Happen in Your Community. Transition Books: Devon, UK.