Mindfulness offers individuals the means to enhance their well-being by changing the way they relate to challenging experiences. Mindfulness-based programs were designed to be taught in groups, and almost all trainees learn this way, yet there has been little research into the impact of the group on the overall learning experience and how this can be exploited to enhance outcomes for each participant. Based on the authors’ ‘Inside Out Group’ (IOG) model, this book offers a clear and simple way to understand the complexities of group processes in mindfulness-based programs based on four key capacities: 1. Inside out embodying (non-judgemental present moment awareness); 2. Reading the group (understanding events based on group processes); 3. Holding the group (cultivating an environment to facilitate learning); and 4. Befriending the group (engaging the heart in mindfulness teaching).