Book excerpt: Quantum Leadership: Advancing Innovation, Transforming Health Care, Fourth Edition is a revised edition of a best-selling graduate level leadership textbook. The text is based on current concepts of leadership, data, and research related to the complexities of leadership.The Fourth edition has been revised to include new elements and ideas around leadership concepts to educate students as well as serve as an outstanding source of reference. This text is a seminal work on the issue of complexity leadership as applied to healthcare. There are very few other references that have the clarity, depth, and detail essential to enumerate this topic in healthcare organizations. It is especially valuable for graduate programs and DNP programs as it provides a foundation for contemporary leadership and emphasizes the role characteristics necessary to lead complex organizations. The new edition will feature an additional chapter on complexity leadership in health reform in order to incorporate the newer requisites of the Patient Protection Affordable Care Act in a way that is relevant to leadership development and capacity. The addition of case studies found within each chapter help in the translational work. New application exercises will be made available via "The Quantum Workbook" as a supplement for learning. Additional updates to the text include: chapter podcasts, additional translational and learning material related to chapter case studies. Lastly, all references have been revised and updated to reflect the most current evidence around learning leadership.