Penn Grad Talks is a day of TED Talk-style presentations by Penn Arts & Sciences graduate students representing the humanities, social sciences, natural sciences, and professional master’s programs as they compete for first place and audience choice prizes within their category.

The 2025 winners are:

• Professional Master’s: Suzanne Johnson, Applied Positive Psychology, with Revenge of the Bionic Beetroot: Conquering Shyness with Optimism
• Humanities: Peter Satterthwaite, Ancient History, with Crowdfunding in Ancient Greece
• Natural Sciences: May Pik Yu Chan, Linguistics, with When High Notes Challenge Speech: What Opera Singers Teach Us About Language
• Social Sciences: Lauren Palladino, Political Science, with The Gender Gap in Political Tolerance: Explaining Women’s Attitudes Toward Free Expression
• Audience Choice Winner: Leonardo Ferreira Guilhoto, Applied Mathematics and Computational Sciences, with How To Know What You Don’t Know

For more information, visit https://pan-school.sas.upenn.edu/penn-grad-talks.