Contact – Codebreaking: A Practical Guide

Thanks for visiting! If there are any questions about the book, or to request speaking engagements, please contact:

Elonka Dunin

For a list of topics that Elonka can speak on, please check her website.

Or she can be reached at: elonka.codebreaking@gmail.com

For a list of Klaus’s talks, check his website.

Or he can be reached at: klaus.codebreaking@gmail.com