The contemporary world bears the mark of a great development process that triggers new challenges and opportunities. In order to evolve, organizations and their members must constantly adapt to this ever-changing environment and, in this regard, communication and feedback play a major role. This chapter deals with the importance of communication, in general, and of internal communication and feedback, in particular, within organizations. The theoretical part of the chapter tackles several important issues related to communication and feedback, such as definitions, models and types of communication, the main barriers to effective communication, and feedback within organizations. The second part of the chapter is focused on a study analyzing the answers to a questionnaire administered to the employees of an insurance company, in order to assess its internal communication and to find correlations between the satisfaction degree resulted from the communication process and the way of viewing the organization's efficiency.