A comprehensive guide to applying crisis theory for effective crisis intervention and trauma-centered care, fostering positive change and improved outcomes. The third edition of this book elaborates on how the term 'crisis intervention' can be commonly misused and how not all crises are emergencies, and not all emergencies are crises. Understanding this fundamental difference can prove invaluable in terms of taking the appropriate action, improving practice and ultimately helping service users. The book therefore offers clear practical guidance about how to make use of crisis theory to positive effect, including situations involving trauma. Through extensive research and theory, it offers an holistic focus that incorporates sociological and existential factors. Content includes: references to the significance of Covid-19 with examples of how to (and how not to) respond to crises; links between crisis and trauma; inclusion and neurodiversity; crisis intervention within education settings, police and management roles; an additional chapter on self-care. Exercises are provided throughout as well as 'food for thought' features to encourage reflection and application to practice.