The Princeton University Preparatory Program (PUPP) is a high-touch, intensive college access program aimed at providing a multiyear college preparation experience to high-achieving, low-income students in the Princeton, New Jersey, area. This report presents the theory of change and logic model of PUPP, detailing the theoretical basis for the expectation that PUPP inputs, resources, and activities will lead to the expected program outcomes, which include that program participants gain admittance to and graduate from selective colleges and universities providing comprehensive financial aid in the form of grants and scholarships.