Comparative research has gained enormous popularity in communication and media studies in the last two decades and is increasingly conducted in international research teams. Collaboration with scholars from different countries brings many advantages, but it is also prone to conflict. Sophia Charlotte Volk presents the first systematic reflection on the conceptual, methodological, and social challenges of international collaborative and comparative studies in communication science. A systematic review of comparative studies and expert interviews with communication scholars shed light on how challenges manifest themselves empirically and what solutions have proven to be appropriate. The book proposes a phase model of collaborative and comparative research that can serve as a guide for scholars on what conditions should be created for productive collaboration in temporary research projects.