Site Credits

This site is now maintained by Jad Marrouche. It was formerly run by Alex Seeley, who completed his PhD in the physics of light-emitting polymers at Cambridge University in 2003. Before that, it was run by Mina Varsani, who completed a PhD in pharmacology at University College, London. The site was originally designed by owta.net. The Black Chamber was coded by iponicsbd.com, and the original design was by Virtual Image.

And further thanks for everyone who provided material for the site, particularly John Alexander (jalex@tesco.net), a collector of encryption machines, who provided various cryptography photos, and the three photographers whose portraits of me appear on various pages.

Nigel Spalding took my first book jacket photo. His pictures have appeared in national newspapers and magazines. You can find out more about his work at Nigel's website.

Bill Green is a London based photographer with an interest in portraits and architecture. He was the photographer for Theatre of Science and more of his work can be seen at his website.

Richard Okon took the photos for the TV series The Science of Secrecy. His contact number is 07977 516 365.