This document summarizes a presentation given by Leo Appleton on the power of public libraries. The presentation discussed Appleton's research project which aims to measure the impact of public libraries on individuals and communities. Specifically, it examines how public libraries can advantage individuals and influence citizenship. The approach involves focus groups and interviews with library users and staff. A pilot study was conducted using focus groups to discuss knowledge, inclusion, and access at libraries. Analysis of the pilot found that libraries provide knowledge through resources, foster inclusion by being inclusive safe spaces, and improve access by providing open access to information. The research anticipates further findings on how libraries develop citizenship and demonstrate their value through access, integration and knowledge.