This guidebook provides program officers with strategies for establishing and enhancing networks to support initiatives, specifically through the example of the Asian Cities Climate Change Resilience Network (ACCCRN). It outlines key components of network planning, including defining objectives, value propositions, and potential activities while emphasizing the importance of strategic thinking and stakeholder engagement. The guide also discusses the evolution and impact of ACCCRN in fostering resilience to climate change by facilitating collaboration among cities and organizations.