For forty years, beginning with the publication of the first modern English translation of the Dialogue Concerning the Two Chief World Systems, Stillman Drake was the most original and productive scholar of Galileo"s scientific work of our age. During that time, he published sixteen books on Galileo, including translations of almost all the major writings, and Galileo at Work, the most comprehensive study of Galileo"s life and works ever written. Drake also published about 130 papers, of which nearly 100 are on Galileo and the rest on related aspects of the history and philosophy of science. The three-volume collection Essays on Galileo and the History and Philosophy of Science includes 80 of those papers. Volume I contains a bibliography of the writings of Stillman Drake, biographical sketches of both Galileo and Drake, and various essays covering the broad range of Galileo"s scientific endeavors, including outlines of the humanistic and religious background of his era. Other essays take up textual and bibliographical issues, analysing Galileo"s mass of notes, treatises, and numerous fragments, previously collected in folios, manuscripts, and unreliable copies. Drake"s wide-ranging essays cover Galileo"s place in the philosophy of science, his relation to his forebears and impact on posterity, and his contribution to astronomy. In addition, the essays take up ongoing controversies, such as Galileo"s stance on the affinity of science with the corpus of human knowledge. Volume I of Stillman Drake"s Essays on Galileo and the History and Philosophy of Science serves as a comprehensive introduction to Galileo"s life, science, and writings, and with its forthcoming companion volumes, will indeed be a fitting tribute to the memory of one of Canada"s most accomplished scholars.