Leslie Arnold Turnberg, Baron Turnberg, is a British medical professional and an author of many publications and books related to the medical and health services fields. His experience extends to areas of research in these fields, and maintaining a clinical practice. He has published five books and some 150 articles on medical and scientific research. He has written two books on the history of Israel: Beyond the Balfour Declaration; the 100 Year Quest for Israeli-Palestinian Peace was published in 2017, and Mandate: Britain's Palestinian Burden, 1919–1939 was published in 2021. In May 2024, Patients First: How to Save the NHS was published.