Edited by Alan J. Sinclair, Foundation for Diabetes Research in Older People, Diabetes Frail Ltd and University of Aston, UK Trisha Dunning, Centre for Nursing and Allied Health Research, Deakin University and Barwon Health, Geelong, Australia Leocadio Rodríguez Mañas, Servicio de Geriatría, Hospital Universitario de Getafe and Universidad Europea de Madrid, Spain Medha Munshi, Joslin Geriatric Diabetes Programs, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, USA