This book addresses the question of when and how positive psychological states impact positive behavior and positive organizational development. It presents two theoretical essays and three empirical studies to find possible answers to this question and it uses a multitude of methodologies with different epistemological assumptions, including quantitative correlation analysis, social network analysis and qualitative grounded theory analysis. In the whole, the book shows that positive psychological states are fundamental to promote individual and organizational higher-levels of performance and well-being. It also points that the capability to induce positive psychological states in others (an “alter-positive” approach) is a powerful way to develop outstanding individuals and organizations. In a broader sense, it stresses the need to promote good vibrations as a fundamental route to create a better world. This book is a "must read" for those interested in the topics of leadership, social networks and entrepreneurship.