Geheime Botschaften. Die Kunst der Verschlüsselung von der Antike bis in die Zeiten des Internet

The book covers centuries of secret codes, from Mary, Queen of Scots to modern quantum cryptography. I'm curious what motivated the author to trace this evolution so comprehensively.

The way the code was broken during WWII was thrilling and full of ingenuity. It made me wonder how much of that history is still unknown or underappreciated today.

Singh simplifies technical concepts well, but I wonder if some parts might still feel dense or inaccessible to newcomers.