The International Cardio-Oncology Society is a committed group of professionals throughout the world who are striving to protect the cardiovascular health of all patients who are undergoing cancer therapy. By optimising the cardiac status of patients with cancer before, during and after their treatment, IC-OS are collectively improving the overall outcomes including survival and quality of life. IC-OS aim to provide the latest scientific and clinical education and research for anyone treating patients with cancer in the hopes of enhancing cardiovascular protection.