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This website describes the public writing of Hahrie Han, a political scientist at Johns Hopkins University, where she is Inaugural Director of the SNF Agora Institute and the faculty director of the P3 Research Lab. The P3 lab seeks to make the participation of ordinary people Possible, Probable, and Powerful, using observational and experimental methods to study civic and political engagement, collective action, organizing, and democratic revitalization. Hahrie has published four books, with her fifth book, Undivided: The Quest for Racial Solidarity in An American Church, coming in September 2024 from Knopf.

UNDIVIDED:
The Quest for Racial Solidarity in an American Church
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PRISMS OF THE PEOPLE:
Power & Organizing in Twenty-First-Century America
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HOW ORGANIZATIONS DEVELOP ACTIVISTS:
Civic Associations & Leadership in the 21st Century
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GROUNDBREAKERS:
How Obama's 2.2 Million Volunteers Transformed Campaigning in America
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MOVED TO ACTION:
Motivation, Participation, and Inequality in American Politics
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