6 pages, In this article, I review Donaldson's (2020) Community Engagement for Extension Professionals: 21st Century Program Planning, Evaluation, and Professionalism. This guidebook is relevant to several audiences including undergraduate and graduate students, Extension professionals, and faculty who work with students and advisees on program planning research and practice. This article highlights the primary contributions of the guidebook, with special emphasis on proactive and reactive Extension programming models.