The Evergreen Programme is a group-based therapeutic programme for older adults with acute mental illness which has been in place since 2003 at St. Patrick's University Hospital, Dublin. The Evergreen Guide is compiled by members of the multidisciplinary team, from a diverse range of disciplines, who deliver this programme in an inpatient unit of the largest mental health facility in Ireland. This publication reflects the broad range of topics and material which form the basis of the 6-week rotational programme. The Evergreen Programme was designed to be an interactive group programme for older people with a range of psychological conditions that could bridge the gap between diversional activities and psychotherapy. We believe that this book will be of particular interest to health professionals who deliver group-based therapy to older people and will also be a resource for long-term care facilities, as well as community-based active retirement groups and day hospitals, and other acute inpatient facilities. The book reflects a holistic approach to the treatment and rehabilitation of older people recovering from acute mental illness. The chapters are presented in a format that prompts discussion and participation through the use of reflective questions at the start of each chapter, followed by six, discrete weekly modules' reflecting the present organisation and operation of the Evergreen Programme. Clinicians can pick up this guide and begin to use it immediately, as a manual or road map in a group setting, for imparting the practical principles and strategies needed by older people to maximise their physical, mental and creative abilities. The breadth of topics covered is diverse ranging from successful aging, to spirituality, to the safe use of medication. All of the material is written by the team of clinicians who have considerable individual skill and knowledge, not only in relation to the theoretical material, but also in respect of the optimal methods and manner for imparting this information to groups of older people. Mental health professionals will appreciate this practical and detailed guide which will increase their effectiveness, relevance and competence in working with older people.