From leading acceptance and commitment therapy (ACT) practitioners, this experiential training workbook invites therapists to broaden and strengthen their ACT skills through deep engagement with ACT theory and techniques. Everyone from beginning therapists to seasoned ACT practitioners can enhance their work through self-practice/self-reflection (SP/SR), a cutting-edge, evidence-based training method. Through a systematic process, readers learn how to effectively apply ACT to a personal or professional challenge and reflect on the experience. Fifteen step-by-step modules are illustrated with vivid examples from the authors’ own SP/SR journeys. In a large-size format for easy photocopying, the book includes 17 reproducible worksheets and over 3 hours of audio exercises. Purchasers get access to a companion website where they can download the audio exercises as well as printable copies of the worksheets.