Book excerpt: This innovative book presents state-of-the-art thinking on using transactional analysis (TA) to change the structure, relationships and culture in organizations. The book is arranged according to the three levels of organizations described by Eric Berne – the structural, interpersonal and psychodynamic levels – and the chapters expand on his concepts at each level. With contributions by an international range of authors, incorporating a selection of practical case studies, the book illuminates key themes including group and team dynamics, psychological safety, emotion and, most foundationally, boundaries. Exploring the tensions of boundaries that can determine both the stability of a system as well as its innovative potential, this book provides a strong structural framework for TA coaches, consultants and analysts, as well as other professionals working with and within organizations.