This book gathers, and makes available in English, with new introductions, previously out of print or otherwise difficult to access articles by Fr Roberto Busa S.J. (1913 - 2011). Also included is a comprehensive bibliography of Busa, an oral history interview with Busas translator, and a substantial new chapter that evaluates Busas contributions and intellectual legacies. The result is a groundbreaking book that is of interest to digital humanists and computational linguists as well as historians of science, technology and the humanities. As the application of computing to cultural heritage becomes ever more ubiquitous, new possibilities for transmitting, shaping, understanding, questioning and even imagining the human record are opening up. Busa is considered by many to be among the pioneers in this field, and his research on projects like the Index Thomisticus is one of the earliest known examples of a humanities project that incorporated automation; it continues to be widely cited and used today. Busa published more than 350 academic articles and shorter pieces in numerous languages, but despite the unquestionable importance of his early work for understanding the history and development of fields like humanities computing and computational linguistics, a large part of his canon and thinking remained inaccessible or difficult to access until this book.