Sinclair McKay
Sinclair McKay is the London-based literary critic for the Telegraph and the Spectator and is the author of The Secret Life of Codebreakers and Bletchley Park Brainteasers.
![a man in glasses is posing for a photo.](https://develop.bigthink.com/wp-content/uploads/2023/07/Sinclair-McKay-Headshot-Credit-Daniel-Bergin.jpg?w=512&h=512&crop=1)
Giambattista della Porta’s contributions to codebreaking changed the course of communication.