Theory-Based Nursing Policy to Enhance Living Quality: A Book Review of Policy & Politics in Nursing and Health Care (8th ed.) by Mason and colleagues (2021). Elsevier.

This article reviews the 8th edition of *Policy & Politics in Nursing and Health Care*, edited by Diana J. Mason and colleagues (2021), highlighting its comprehensive coverage of nursing leadership, policy, and politics in healthcare. The book emphasizes nurses' roles as trusted leaders who can influence health policy to improve healthcare quality, access, and equity, grounded in core values such as health as a right and the reduction of disparities. It is organized into six units addressing historical, ethical, and practical aspects of nursing policy across government, workplace, associations, and community spheres. The review particularly explores nurse leadership through the humanbecoming leading-following model, which frames leadership as a dynamic process involving commitment to vision, willingness to take risks amid ambiguity, and reverence for others, thereby encouraging evidence-based, theory-informed policy engagement. Overall, the book serves as a foundational resource for nursing students and professionals to develop leadership skills and engage effectively in healthcare policy to enhance patient-centered care and community well-being.