This work presents the cultural, social, and psychological aspects of negotiation that influence communication between different cultures in the business world. Through a comparative analysis of various cultures, this work explores how different cultural norms, values, and customs shape negotiation styles in different countries. The first part of the work deals with the theoretical explanation of what culture is and what it encompasses, as well as the role of culture in the negotiation process. The second part of the paper examines models such as Hofstede's cultural dimensions and Schwartz's ten cultural values, which help in understanding how culture influences behavior in negotiations. The final third part focuses on demonstrating, through specific examples, how countries representing cultural clusters behave in negotiations. The aim of this thesis is to explore and analyze how cultural differences affect negotiation skills and practices in Europe and around the world. This work aims to identify key cultural factors that shape different negotiation styles and to understand how these differences manifest in the international business environment. Furthermore, the goal is to provide guidelines for the development of effective negotiation strategies that take intercultural differences into account, with a particular emphasis on adapting negotiation approaches to achieve optimal outcomes in different cultural contexts.