Directly inspired by a lightning talk from GLAM-Wiki 2018 I started a project to improve the coverage and visibility of public libraries in the Netherlands on Wikidata. Although there are a number of websites listing all these plusminus 1300 library branches, I was quite surprised to find that none of them provide both structured and openly licensed, let alone linked data, while openness should be at the the core of every library's mission. I decided to solve this problem by adding address and geo data of every public library to Wikidata, hence for the very first time creating a (5-star) linked open data set for this type of library. See https://www.wikidata.org/wiki/Wikidata:WikiProject_Netherlands_Public_Libraries This enables innovative uses, such as overviews and visualisations of the Dutch public library landscape on organisational, municipal, regional, provincial and national levels. This is of interest not only to Wikipedia and LOD enthousiasts, but also to e.g. policy makers, municipalities, ...