In Finland, mobile libraries play an important role in providing library services to city suburbs and villages.
This paper describes the research design and the results of the study. It addresses service, interaction and spatial solutions, for a new library bus built and implemented by the City of Espoo in Feb. 2013. The final service design for the library bus is an empty, modular and reconfigurable space that can be adapted for various thematic purposes. To illustrate the service, a model of the standard bus is presented, along with four thematic variations (Starry Skies, Mini-Cinema, Storytelling, Gardening).