Current Opinion in Endocrinology and Diabetes was launched in 1994, with Obesity added to the title in 2007. It is one of a successful series of review journals whose unique format is designed to provide a systematic and critical assessment of the literature as presented in the many primary journals. The fields of endocrinology and diabetes are divided into 9 sections that are reviewed once a year. Each section is assigned a Section Editor, a leading authority in the area, who identifies the most important topics at that time. Here we are pleased to introduce the Journal's Editor and Section Editors for this issue. EDITOR IN CHIEF David M. HarlanDavid M. HarlanDr David M. Harlan is a graduate of the University of Michigan (Bachelor of Science) and the Duke University School of Medicine, USA. He completed his internal medicine internship and residency at the Duke University Medical Center. This was before serving for 4 years as a staff internist at the Navy Hospital, San Diego, CA, USA. He then returned to Duke for his fellowship training in diabetes, endocrinology, and metabolism. In 1991 he established his laboratory at the Navy Medical Research Institute, USA, where he rose to become the Director of Combat Casualty Care. He was then appointed to the faculty of the Uniformed Services University of the Health Sciences. In 1999, he moved his laboratory to the National Institutes of Health, where he became the Diabetes Branch Chief within the National Institute of Diabetes, Digestive, and Kidney Diseases. In 2010, he moved to the University of Massachusetts School of Medicine, USA, where he is the William and Doris Krupp Professor of Medicine and Diabetes Division Chief. Dr Harlan also co-directs the UMass Diabetes Center of Excellence. His research interests all relate to diabetes and include the immunopathogenesis underlying type 1 diabetes and improved care delivery models for the disease. SECTION EDITORS Matthew FreebyMatthew FreebyMatthew Freeby, MD, is Health Sciences Associate Clinical Professor of Medicine in the Division of Endocrinology, Diabetes, and Hypertension, David Geffen School of Medicine at the University of California Los Angeles, USA. Dr Freeby received his MD from Virginia Commonwealth University, USA and completed his internal medicine internship and residency training at the University of California San Diego. He subsequently completed training in an endocrinology fellowship at Columbia University Medical Center in New York, USA. Dr Freeby is involved in community leadership for the American Diabetes Association and serves on planning committees for the Endocrine Society's annual meetings. His research has focused on a number of diabetes related topics including non-invasive in vivo measurement of beta cell mass as well as the evaluation of general care and complications. He has also collaborated with researchers evaluating iPS as a method for beta cell replacement in type 1 and other rare forms of diabetes. Lynne L. LevitskyLynne L. LevitskyDr Lynne L. Levitsky is a graduate of Bryn Mawr College and Yale Medical School, USA. She received her pediatric training at the Albert Einstein College of Medicine in New York, USA, and at the Children's Hospital of Philadelphia, USA. She was trained in pediatric endocrinology at the University of Maryland in Baltimore, USA. She was a Pediatric Endocrinologist and Professor of Pediatrics at the Pritzker School of Medicine, University of Chicago, USA, until 1990. She then came to Massachusetts General Hospital, USA, as Chief of the Pediatric Endocrine Unit and Associate Professor of Pediatrics at Harvard Medical School. She is now Emeritus Chief and co-director of the Turner Syndrome Wellness Center, USA. Her research interests in carbohydrate metabolism span laboratory studies of transcriptional control of beta cell function, and a role as an investigator in the NIH-sponsored TODAY treatment study of type 2 diabetes in the young. She is a past President of the Pediatric Endocrine Society and was the first head of the Education Council for that organization.