Supervision is an essential component of all analytic and psychotherapy training and, with the increasing emphasis on regulation and moves towards registration, it has become a crucial part of ongoing professional development for all supervisors and supervisees. In this authoritative and thoughtful new book, Jan Wiener, Richard Mizen and Jenny Duckham, together with a number of senior Jungian analysts, explore key aspects of the supervisory process. Two core themes run throughout the text. The first is the central concept of supervision as a relationship where both parties may be changed, especially if the unconscious processes that are evoked within that relationship are understood. The second is the question of whether there are theories or models, specific to supervision and if so, how they may be differentiated from our general theories about analytic practice. The chapters are arranged in four sections. In Part One, authors explore the dynamic nature of the supervisor-supervisee experience. In Part Two, they look specifically at the relevance of the setting to the process of supervision. In Part Three, they examine potential problems and ethical dilemmas in supervision, and finally, in Part Four, turn specifically to the challenges of developing a clear theory. Supervising and Being Supervised is an invaluable text for all practising analysts, psychotherapists and counsellors.