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The Campaign Lab Library is a growing collection of what we’ve built and learned – from AI tools and field-tested guides to research briefings and campaign resources.

Everything here is made to be useful. Whether you’re running a local campaign, designing an experiment, or just looking for ideas, this is where we publish what might help others across the ecosystem.

Take what you need. Share what you can.

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Campaigners often assume that people are more likely to be persuaded by someone who looks or sounds like them, someone of a similar age, gender, or background. After all, research has long shown that we tend to trust people who seem “like us.” But a new study challenges that assumption head-on. In their paper, Shared […]

  • Who's this helpful for: Campaigners

In the tenth edition of the Campaign Lab Academic Series, Isolde Hegemann, a PhD researcher at the London School of Economics, presented early findings from a major new study examining how Republicans in the United States respond to different forms of fact-checking. Her work comes at a moment when the American information environment has shifted […]

  • Who's this helpful for: Researchers, Technologists

The ninth entry of our Academic Series asked a deceptively simple question: how did Labour secure one of the largest post-war majorities in 2024 while winning a historically low share of the vote for a governing party? Professor Charles Pattie walked us through the mechanics of First Past the Post (FPTP) to explain why this […]

  • Who's this helpful for: Campaigners, Researchers

Selected survey responses and their location within 1km of a proposed site from the first test conducted in February 2024, a total of 66 responses were recorded out of 900 leaflets dropped. The results indicate that people living within 400 meters of a mentioned issue were much more likely to scan a QR code to […]

  • Who's this helpful for: Campaigners
A tool to track and report Reform Council Failures across the country
Summary: A randomised trial tested whether flyers criticising either local Conservative MPs or the national government would affect turnout. Among likely Conservative voters, the nationally framed flyer had no effect, but the locally focused flyer reduced turnout by 2.6 percentage points—statistically significant at the p < 0.1 level.
  • Who's this helpful for: Campaigners, Members of parliament
Summary: A randomised trial found that handwritten-style postcards featuring local landmarks increased voter turnout by 1 percentage point. While the result didn’t meet strict academic thresholds for statistical significance, it did reach the p < 0.1 level often used in practical campaign settings—suggesting a meaningful effect for practitioners. No additional impact was found based on how close recipients lived to the featured landmark.
  • Who's this helpful for: Campaigners, Members of parliament