The European Society for Medical Oncology, or ESMO, is a professional organization dedicated to advancing cancer care and research. Founded in 1975, it aims to improve the quality of life for cancer patients through education, training, and the promotion of best practices in oncology. ESMO provides resources for healthcare professionals, including guidelines, conferences, and publications. ESMO also plays a significant role in fostering collaboration among researchers and clinicians in the field of oncology. By organizing annual congresses and workshops, it facilitates the exchange of knowledge and the latest advancements in cancer treatment, ultimately benefiting patients and healthcare systems across Europe and beyond.