In Human Model, Dr. Issam Wadi summarises and explains more than 40 years of professional and academic research into human and social behaviour. He examines important aspects in our lives by showing how human and social systems are deeply influenced by universal, natural processes. He shows how research in the natural and social sciences can help to illuminate complex human processes, using friction theory to explain how human beings relate to one another, how resonance theory provides us with a better understanding of mass behaviour, advertising, and marketing, and how feedback theory explains human behaviour from a management perspective. Drawing these parallels between natural and human systems helps to illustrate the way that human beings are embedded within larger, natural processes, as well as supplying a much clearer and easy to understand approach for readers and researchers. With the starting blocks in place, one can then begin to use proven scientific theories and social models to develop more sophisticated analyses and studies of complex social behaviour, from mass movements and crowd psychology to financial markets and economic forecasting. This book is an important milestone in the modelling and understanding of human social behaviour and aims to contribute both to a broader mainstream understanding of these fields and further research through these versatile social modelling tools. Human Model also explains the author's own 'Zero Sum Theory' for explaining happiness in life and how this can be affected by the individual's own mental models, while providing further reflections on the impact of technology on modern life, social behaviour, the family, and society more broadly.