Dynamic Interpersonal Therapy (DIT) is a brief psychodynamic psychotherapy developed for the treatment of mood disorders. It is now offered in the UK in NHS for the treatment of depression and has been applied worldwide in public health care settings as well as private settings.This book is a user-friendly, practical guide for the implementation of a brief psychodynamic intervention in routine clinical practice as well as in research protocols. It has been substantially updated since the first edition in 2011 with the addition of 5 new chapters to reflect new applications of the model in complex care, for patients with functional and somatic disorders and for internet delivered DIT and it outlines the changes in the training of DIT practitioners. It sets out clearly the theoretical framework, as well as the rationale and strategies for applying DIT with patients presenting with mood disorders (depression and anxiety). Throughout, it is illustrated with detailed examples that help the reader to implement the approach in their practice.The book will be required reading to support training initiatives in DIT, as well as providing a resource for mental health professionals specialising in psychodynamic psychotherapy and wishing to work within a limited time frame.