- book covers -- [Weishar (1998)], [Eco (1994)], [Burger (1981)], [Kunst], [Betsky (2004)]
- Federico Campanale -- Oxygen, fragments from video installation, 2004
- Vasarely -- [Diehl 1973].
- Vasarely -- [Diehl 1973].
- Vasarely -- [Diehl 1973].
- Federico Campanale -- Oxygen, more fragments.
- student work -- from introduction multimedia 2000.
- Rutger van Dijk -- mobius, interactive story, opening screen,
see section 2.3.
- edgecodes -- screenshots, see section 2.3
- signs -- people, [ van Rooijen (2003)], p. 244, 245.
