Course overview

In our opening film, Chris Hughes introduces the course, and explains the difference between codes and ciphers.

How this all works

Each week will have a theme, and we’ll learn about it through videos, articles and discussion. There will also be other optional tasks and exercises you can try to enhance your learning.

Each week builds on the last, so we strongly recommend you work through each week in order. Each week should take you around 4 hours to complete, if you do all the tasks, and there is a quiz or test within each week to give an indication of what you’ve learnt.

(And when you have finished reading a section, please ‘Mark as complete’, and move onto the next step).