This report focuses on effective business communication, emphasizing its importance in personal and professional settings. It begins with an introduction highlighting the significance of communication skills and the need for their development. The report then details five diagnostic tools used to evaluate communication skills, including assertiveness questionnaires, the Johari window, and interview skills checklists, and discusses the findings. The diagnosis reveals weaknesses such as difficulty expressing thoughts and lack of confidence in presentations and interviews. A literature review follows, exploring factors that hinder effective communication and emphasizing the need for assertive communication and interpersonal skills. The review also addresses communication apprehension and the importance of preparation and planning. Finally, the report proposes an action plan for improving communication skills, suggesting activities such as reading, taking short courses, and seeking mentorship. The report concludes by referencing relevant literature to support its findings and recommendations.