Rollo May was an influential American existential psychologist, born on April 21, 1909, and known for his work in the field of psychology and philosophy. He emphasized the importance of individual experience and the human capacity for choice, focusing on concepts like anxiety, love, and creativity. His writings often explored the challenges of modern life and the search for meaning. May authored several notable books, including Love and Will and The Courage to Create, which have had a lasting impact on psychology and the arts. He was a key figure in the development of humanistic psychology, alongside other prominent figures like Carl Rogers and Abraham Maslow.