The review of Elizabeth I. Eisenstein's *The Printing Press as an Agent of Change* highlights the book's comprehensive exploration of the impact of the printing press on early-modern Europe. Eisenstein, over fifteen years, developed a nuanced understanding of the complex interactions between the advent of printing and cultural transformations. The book is divided into three parts: the shift from script to print, the Renaissance and the Reformation, and the rise of modern science. Eisenstein emphasizes the permanence and efficiency of the printed word, noting how it transformed religious and scientific discourse. However, the review criticizes Eisenstein's approach for its focus on formal causality and lack of attention to the social and psychological impacts of print. The reviewer, Marshall McLuhan, contrasts Eisenstein's somber narrative with the more lyrical and optimistic tone of his own work, *Gutenberg Galaxy*. McLuhan argues that the effects of print are often overlooked by scholars who are too focused on the medium itself. The review also discusses the book's failure to address the aesthetic and hermeneutic changes brought about by print, such as the decline of multi-level exegesis and the rise of linear typography. Despite these criticisms, the review acknowledges Eisenstein's significant contribution to understanding the historical and cultural significance of the printing press.The review of Elizabeth I. Eisenstein's *The Printing Press as an Agent of Change* highlights the book's comprehensive exploration of the impact of the printing press on early-modern Europe. Eisenstein, over fifteen years, developed a nuanced understanding of the complex interactions between the advent of printing and cultural transformations. The book is divided into three parts: the shift from script to print, the Renaissance and the Reformation, and the rise of modern science. Eisenstein emphasizes the permanence and efficiency of the printed word, noting how it transformed religious and scientific discourse. However, the review criticizes Eisenstein's approach for its focus on formal causality and lack of attention to the social and psychological impacts of print. The reviewer, Marshall McLuhan, contrasts Eisenstein's somber narrative with the more lyrical and optimistic tone of his own work, *Gutenberg Galaxy*. McLuhan argues that the effects of print are often overlooked by scholars who are too focused on the medium itself. The review also discusses the book's failure to address the aesthetic and hermeneutic changes brought about by print, such as the decline of multi-level exegesis and the rise of linear typography. Despite these criticisms, the review acknowledges Eisenstein's significant contribution to understanding the historical and cultural significance of the printing press.