The Doors of Perception Conferences in the Netherlands and in India, have had a great impact on my thinking and sense of design. I was deeply involved with the network that came into existence as result of these conferences. Sometimes I was speaker, sometimes chairing a debate or workshop, or just enjoying being in the audience. Also I was chair and member of the board of the Doors of Perception foundation between 1998 and 2004. Please visit the beautiful and well archived website www.doorsofperception.com. Here you also find the interesting thinking on design and other work that John Thackara is doing now.