This guide outlines the concept of walkable communities and the role of Geographic Information Systems (GIS) in their design and development. It begins by defining what makes a community walkable, identifying five essential components: economic mobility, safety, prioritizing pedestrians over vehicles, transportation accessibility, and effective street design. The document emphasizes the importance of planning that integrates these components to foster healthier, more connected neighborhoods. It further explains how GIS technology supports planners in understanding neighborhood characteristics, designing land-use scenarios, managing transit access, and coordinating community engagement. Additionally, a case study on the District of Columbia's Vision Zero initiative illustrates the practical application of GIS in enhancing roadway safety and community involvement. The guide concludes with a proposed offer for software and services needed to implement a walkable communities strategy, detailing the necessary tools and support for planning agencies.