Otlet was the first to imagine all the world’s knowledge as one vast “web,” connected by “links” and accessed remotely through desktop screens, and because of this he can be seen as the kooky grandfather of the Internet. From the beginning of his career as a lawyer and bibliographer, Otlet wrote prolifically and prophetically about how information could be organized and transmitted. He developed the Universal Decimal Classification system (UDC), an expanded form of the Dewey Decimal Classification system that assigned individual numerical subject codes to documents, allowing them to be searched and cross-referenced in a standardized manner. His later writings on information science examined the technological advancements of his time that he regarded as potential substitutes for the book: the radio, television, telephone, and telegraph, sound recordings, cinema, and microfilm (which he developed alongside Robert Goldschmidt). In doing so, Otlet prefigured the work of computer-science pi