Jack S. Cohen

The Science of Discworld

By Terry pratchett, Ian Stewart, Jack S. Cohen

The Science of Discworld II: The Globe: 2

By Terry pratchett, Ian Stewart, Jack S. Cohen

The Science of Discworld II: The Globe

By Terry pratchett, Ian Stewart, Jack S. Cohen

The Collapse of Chaos: Discovering Simplicity in a Complex World

By Jack S. Cohen, Ian Stewart