"This is one of the very best acceptance and commitment therapy books out there for those interested in moving from a conceptual understanding to really learning how to apply these concepts and skills. Written with both precision and depth, this book is a must-read for any ACT practitioner wanting to put their book learning into practice." - Jenna LeJeune, PhD, Cofounder and President, Portland Psychotherapy, Portland, OR "This book distinguishes itself through its unparalleled collection of personal and clinical practice exercises that guide therapists from beginner through advanced proficiency across all six core ACT processes. Whether you're learning ACT fundamentals or refining your therapeutic presence, this book gives you tools to advance your skills—on topics from functional contextualism to relationship rupture repair—and provides a complete developmental pathway found in no other book." - Jason B. Luoma, PhD, CEO, Portland Psychotherapy, and Senior Scientist, Portland Institute for Psychedelic Science, Portland, OR "This is the ACT book I wish I'd started with—a smart, well-written guide that uses simple, clear language to lay out the what, when, and why of ACT interventions. It's packed with genuinely useful exercises that bring the concepts to life in practical ways, while perfectly illuminating ACT's philosophy, theory, and six core processes. An ideal introduction for anyone beginning to learn ACT or wanting to deepen their understanding of the approach." - Miranda Morris, PhD, Peer Reviewed ACT Trainer, Past President, Association for Contextual Behavioral Science, ACBS Fellow, and Founder, True North Therapy and Training, Bethesda, MD