This report provides a detailed examination of business communication within the context of Mr. Fishy. It begins by outlining the importance and principles of various types of business communication, including formal, informal, directional (upward, downward, horizontal), internal, and external communication. The report then delves into the challenges and barriers to effective communication, such as language, psychological, physiological, physical, and attitudinal barriers. Subsequently, it explores strategies to overcome these barriers, emphasizing the importance of avoiding casual language, considering cultural differences, and using simple language. The report also discusses the application of communication principles like clarity, completeness, conciseness, concreteness, coherence, and courtesy. Finally, it evaluates different communication practices, comparing bilateral and unilateral approaches, and analyzes the influence of culture on communication and negotiation within the organization, highlighting how cultural differences can impact interactions and potentially lead to conflicts. The report concludes by summarizing the key findings and recommendations for improving communication effectiveness at Mr. Fishy.