In every organisation, performance is not driven by systems and strategy alone — it is shaped by people and the conditions in which they work. At the core of resilient, ethical, and high-performing workplaces lies psychological safety: the shared belief that people can speak up, challenge ideas, ask questions, and admit mistakes without fear of blame, humiliation, or retaliation. Despite its growing prominence, psychological safety is often misunderstood. It is not about lowering standards, avoiding accountability, or creating comfort without challenge. When done well, psychological safety strengthens decision-making, supports respectful challenge, and enables teams to manage risk, complexity, and change more effectively. This eBook is written for leaders, HR and WHS professionals, governance practitioners, and change agents who want practical, evidence-based guidance — not theory alone. It bridges neuroscience, organisational psychology, governance, and Australian legal obligations to show why psychological safety is now a strategic, operational, and compliance imperative. Grounded in real-world experience, the book provides clear frameworks, tools, and examples to help organisations identify psychosocial risks, meet WHS duties, and build cultures where people think clearly, speak early, and perform sustainably. Psychological safety is no longer optional. This eBook shows you how to build it — deliberately, lawfully, and effectively.