Taming the Vicious Circle considers how lessons learned in science and engineering can be applied in other spheres to prevent situations running out of control. The systems considered are not only the physical ones of convention but also aspects of sociology, psychology, finance, economics and many others. The Scoldent list is introduced to act as a trigger for brainstorming ideas to tackle problems. The list is also applicable to the virtuous circle in identifying ways of improving performance or at least reducing counteracting forces that limit the expansion of, for example, a successful business. The self-confidence of people is subject to these phenomena and so too is confidence in financial institutions Whilst a positive feedback loop such as the vicious circle can be dangerous the negative feedback loop offers stability. Dangers can nevertheless arise when there is delay. This book started when the author became aware how many people did not think about some basic rules that control many facets of our daily life. When the ideas were floated at discussion groups an animated discussion always followed and aroused much interest.The aim is to spread that interest around a wider readership.