How should we "fix" digital technologies to support democracy instead of undermining it? In Designing for Democracy, Jennifer Forestal argues that accurately evaluating the democratic potential of digital spaces means studying how the built environment-a primary component of our "modern public square"-structures our activity, shapes our attitudes, and supports the kinds of relationships and behaviors democracy requires. While many scholars and practitioners are attentive to the role of design in shaping behavior, they have yet to fully engage with the question of what structures are required to support democratic communities-and how to build them. Forestal closes this gap by providing a new theory of democratic space. Drawing from a wide range of disciplines, including architecture, psychology, and the history of political thought, she argues that "democratic spaces" must be designed with three environmentalcharacteristics-boundaries, durability, and flexibility-that, taken together, a