This work aims to disseminate the knowledge and use of research methods in universities, especially in the area of Law. We decided to delve into the methodology of comparative legal research, since the results of these studies have contributed to the development of international legal culture and the increasingly comprehensive training of law students. Since the importance of the comparative method for the enrichment of the science of law is evident, it is necessary to insist on the need for its methodological integration and introduction, as a basic discipline (comparative law), in the various legal careers, both in undergraduate and postgraduate programs, and in university extension. This book aims to awaken in students and professionals an interest in comparative law. Thus, with a peculiar scientific focus, we intend to resume the debate on whether comparative law should be considered a "science", "branch", "discipline" or "method of legal research".