Top: Tim Berners Lee presents the World Wide Web at Hypertext 1991;
Gillies, James / Cailliau, Robert: How the Web was Born. Oxford University Press, Oxford, 2000 amazon.de

Bottom: Screenshot of WorldWideWeb, the first graphical Web browser and editor ever
Berners-Lee, Tim / Cailliau, Robert / Luotonen, Ari / Nielsen, Henrik Frystyk / Secret, Arthur: The World-Wide Web. In: Communications of the ACM 37(8) p. 76-82, 1994: screensnap2_24c.tiff – edited by the author