Robert Cailliau was a Belgian informatics engineer, computer scientist and author. He proposed the first (pre-world wide web) hypertext system for the European Organization for Nuclear Research (CERN) in 1987 and collaborated with English computer scientist Tim Berners-Lee on the world wide web (www). He also designed the historical logo of the www, organised the first International World Wide Web Conference at CERN in 1994 and helped transfer web development from CERN to the World Wide Web Consortium (W3C) in 1995. Simultaneously, Cailliau started the Web for Schools project with the European Commission, introducing the web as a resource for education. After helping with this transfer from CERN to W3C, he devoted his time to public speaking before going on early retirement in January 2007.