Book excerpt: Increasingly adopted by therapists and mental health professionals, Acceptance and Commitment Therapy (ACT) helps clients to cope with social, emotional and mental health issues by using the six core ACT processes: Acceptance, Cognitive Defusion, Being Present, the Self as Context, Values and Committed Action. This is the go-to-guide for evidence-based ACT techniques to be used by professionals to help their transgender, genderqueer, genderfluid, third gender and agender clients. It provides the tools to help these clients develop emotional processing skills they can implement throughout their life, from coping with mental health issues and substance abuse, to navigating prejudice and social pressure, to building a career and developing a family.