The document discusses how linked library data can contribute to smart cities through two research projects. The first project develops recommendations for preparing bibliographic data as linked open data by unifying metadata from different sources and selecting an appropriate metadata standard. The second project connects library data to unfamiliar datasets available as linked open data by analyzing music-related datasets and aligning library data constructs with those from linked open data sources. The projects lay the technological groundwork for libraries and users to benefit from linked data through discovery and reuse of datasets and by enhancing information services.