Post-Rational Planning confronts today’s threats to truth, particularly after recent news events that present alternative facts and media smear campaigns, often described as post-truth politics. At the same time, it appreciates critical tensions: between rationality (prized by planners and other policy professionals) and desires for positive, socially just outcomes. Rather than abandoning quests for truth, this book provides tools for planners, policy professionals and students with tools for better responding to, and preventing, debates over truth. Post-Rational Planning examines planners’ unease with emotion and politics, advocating for more scholarship and practice capable of unpacking uses of rhetoric and framing to support or counter key planning decisions impacting social justice. This includes learning from recent works engaging with rhetoric, narrative construction, and framing in planning, while introducing other valuable concepts from disciplines like psychology, including confirmation bias; identity-protective cognition; marketing and adult education. Each chapter sheds new light on a specific topic requiring a response through post-rational practice. It starts with recent research findings, then demonstrates them with case examples, enabling their use in classroom and practice settings. Each chapter summarizes key lessons in "Take-aways for practice", better enabling readers of all levels to synthesize and use key ideas.