M&As are key driving mechanisms through which organizations attempt to sustain business growth and to increase their competitive advantage. However, history has shown that despite the increasing number of organizations willing to take the risk, most M&As fall short of expectations. The purpose of this book is to examine the dynamics of post-M&A performance in several cases selected within the Turkish business environment and it endeavors to determine whether M&A performance can be explained by a model developed from the literature. By incorporating multiple methods of investigation such as survey and case study methodologies, this study aims to get a better understanding of the mechanisms behind post-M&A integration and to determine the precursors leading to perceived success of the partnership. In other words, this research identifies the most important actions and determinants that joining firms have to consider in order to ensure the success of their companies in the long run.