This article by Ann-Christin Karlén Gramming, Elisabeth Ejemyr and Elin Thunell is based on a presentation delivered at the BIALL Annual Conference in 2019. It focuses on promoting library services through an e-learning system called ‘Nano-learning’. It is an innovative way of promoting the library and its services in a new and engaging manner. It combats information overdose (usually followed by a rapid forgetting curve) by relying on spaced repetition. The system also comes with useful analytics and reporting tools, making it easy to measure and showcase ROI (return on investment) to partners.