Elizabeth Kubler-Ross was a Swiss-American psychiatrist best known for her work on the psychology of death and dying. She introduced the Kubler-Ross model, which outlines five stages of grief: denial, anger, bargaining, depression, and acceptance. Her groundbreaking book, On Death and Dying, published in 1969, brought attention to the emotional experiences of terminally ill patients. Throughout her career, Kubler-Ross advocated for better end-of-life care and emphasized the importance of understanding the emotional needs of patients. She founded the Elizabeth Kubler-Ross Foundation to promote awareness and education about death and dying, leaving a lasting impact on the fields of psychology and palliative care.