Cecilia Payne-Gaposchkin is acclaimed as the greatest woman astronomer of all time. In this book, her own story of her professional life, work, and scientific achievements is augmented by the personal recollections of her daughter, Katherine Haramundanis. Other highlights include a scientific appreciation by Jesse Greenstein, a historical essay by Peggy Kidwell and, new to this edition, an introduction by Virginia Trimble. Payne-Gaposchkin's overwhelming love for astronomy was her personal guiding light, and her attitude and approach have lessons for all. She received many prestigious awards for her outstanding contributions to science. In 1956, she became the first woman Professor at Harvard University, as well as being the first woman departmental chair. This book will interest both astronomers and those studying the advancement of the position and status of women in society.