This report examines the development of individuals, teams, and organizations within the context of High Town Housing Association. It analyzes the professional knowledge, skills, and behaviors required by HR professionals, conducts a personal skill audit, and outlines a professional development plan. The report also investigates the difference between organizational and individual learning, training, and development, and the importance of continuous learning and professional development for sustainable business performance. Furthermore, it delves into the key elements of high-performance working systems, their impact on organizational performance, and how they enable better skill utilization. Finally, the report examines how performance management, collaborative working, and effective communication support a high-performance culture.