Acceptance and Commitment Therapy (ACT) helps clients to embrace their feelings and use their personal values to improve their lives. Its popularity has grown significantly in recent years, but the number of ACT resources designed to support children is still limited. The ACT strategies and activities in this guide have been designed specifically for use with children aged 5-12, with a particular focus on the uniquely delicate connection needed for a successful practitioner-client relationship. The approach is designed to fit children's stages of development and learning styles, allowing young clients to build skills in a way that suits their age and cognitive patterns. Built from the author's extensive experience in child psychology, this guide offers ways to tailor ACT for effective work with children. It includes specific and detailed guidance on tailoring ACT to specific presentations, including OCD and neurodivergent populations, as well as parenting.