World wars.The gulags.The Reign of Terror.

Discover how 24 logical fallacies led to some of the worst tragedies the world has ever seen.

Out late Dec 2026

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24 Fallacies and the Historical Disasters That Followed
Duchess

Meet Duchess. Clever, sceptical and fiercely independent, she schemes when it suits her, which is often. Poor Bruno, he never gets a break and has to put up with her antics. Together they walk you through history's worst decisions and the bad thinking that caused them.

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The book lands late December. Join the waitlist and we'll tell you the moment it's out.

Coming soon

What's That Fallacy?

Duchess and friends playing What's That Fallacy?

The game where you call out bad arguments before they call the shots.

Get first dibs