Organizational theories are building blocks based on scientific facts that help us understand and perceive the role of organizations in our lives. These theories, which need long efforts and large scientific researches to develop in epistemological and ontological contexts and to be satisfied in systems, continue to be dynamic. These theories, which are units and levels of analysis, are "organizers", and are affected by direct or indirect changes in the environment, and need continuous development and self-improvement. In this book, designed to trace such development and give readers a broader perspective, starting from the basic assumptions and arguments of the theories, a chronological review has been carried out in line with the developments in the last 10 years. Concepts defining events and situations affecting organizations in the recent period have been determined within the scope of different organizational theories and tried to contribute to the relevant literature. Based on the importance of individuals, organizations formed by individuals, and even communities formed by organizations, the importance of continuous and systematic implementation of organizational theory work is still important. It is expected that this book, which serves this purpose and is supported by relevant case studies, will contribute to the field.