The book "Galileo Galilei" by Vieweg & Teubner offers a comprehensive exploration of the life and work of the famous scientist. It highlights Galileo's childhood and youth as well as his significant activities in Pisa, Padua, and Florence. A central theme is the ideological conflict that Galileo had with the church authorities, which led to a profound change in the scientific and worldview of his time. Furthermore, his scientific legacy is analyzed in his major works, and a look ahead is provided on the developments in physics through Newton and Einstein. The book also includes a chronology, literature references, and an index of persons to assist the reader in delving deeper into the subject.