This graduate thesis investigates the influence of generational affiliation on communication in the organization. The objective of the work is to understand how different generations (Baby Boomers, Generation X, Millennial and Generation Z) shape and experience communication practices in the workplace. Considering the rapid development of technology and changes in working conditions, intergenerational communication become organizations key topic in strive to optimize interpersonal relations and work efficiency. The research was conducted through a survey, with the goal to analyze different generations of employees preferences and their styles of communication in relation to communication channels, technology and form. Challenges in intergenerational relations and the perception of communication effectiveness were also considered, as well as the role of organizational culture in shaping these styles. Research result shows that different generations prefer different forms of communication. The younger generations emphasize the role of digital tools, such as e-mail, chat platforms and video conferences, while older generations prefer personal communication and telephone conversations. Furthermore, it was found that attitudes towards technology, organizations hierarchy and leadership styles vary between generations, which can lead to misunderstandings and challenges in mutual communication. Based on the conducted research, suggestions for improvement of communication practices and the implementation of strategies were presented, which would enable better harmonization of generational differences in organizations.