Over the last decade, Eleanor Drago-Severson has authored or coauthored four books on adult learning as key to leadership development in schools. organizations--is evident in each of the publications. The titles include the following: (1) "Helping Teachers Learn: Principal Leadership for Adult Growth and Development"; (2) "Leading Adult Learning: Supporting Adult Development in Our Schools"; (3) "Helping Educators Grow: Strategies and Practices for Leadership Development"; and (4) "Learning for Leadership: Developmental Strategies for Building Capacity in Our schools" ( Drago-Severson, E., Blum-DeStefano, J., & Asghar, A.). In this article, reviewers Kathleen Taylor, and Catherine Marienau, write that over the last decade, these books authored or co authored by Eleanor Drago-Severson reveal her passion for development--of individuals, groups, and organizations. The fundamental premise of Drago-Severson's important work in leadership development is that to be most effective, adult professionals must continue to learn in ways she describes as transformative, rather than primarily informative. In making that distinction, Drago-Severson notes that informative learning involves adding to what one already knows, while transformative learning involves ways to deal more effectively with life's complexities. Having taught in renowned graduate programs, such as Columbia University's Teachers College and Harvard Graduate School of Education, Drago-Severson has described and refined through the series of four books an approach focused on two core elements: Robert Kegan's (1994) cognitive-developmental theory and her own learning-oriented leadership model.