The aim of this course is to show, both from a theoretical and pragmatic point of view, the "re-mediation" made by the computational tool of idea of the book. Examples of digital editions will be analyzed, starting from the electronic book to electronic scholarly editions, with a strong emphasis both on the document-centric aspect, represented by the text encoding and in particular by the language of the Text Encoding Initiative (TEI), and on the datacentric one, represented by relational databases and the Semantic Web. Then tools for the analysis of the literary text and the representation of primary sources will be presented and analyzed.