My new book “Codebreaking: A Practical Guide”, co-written with Elonka Dunin, was published last week – only one day before the Zodiac Killer solution was announced.

Earlier this week I gave an interview (in German) about Crypto AG and the RUBICON affair. It is now available online.

If you understand German you should listen to this radio broadcast about the Voynich Manuscript – including an interview with me. And then, there are two articles I have published recently.