On the 29th of January,   Ugne Lipeikaite, EIFL-PLIP Impact Manager, and Kristine Paberza-Ramiresa, IFLA Member Engagement Officer  gave us a general overview of  data about services or programs libraries should collect and how to use the data in telling compelling stories. The rules, tools, and tips of evidence-based storytelling showcased in this workshop will help us all be more efficient in making the case for our libraries value.