The user experience framework (UX) serves to analyze the characteristics, preferences and perceptions of non-users of the public library to inform the (re)design of services. Empirical data come from a representative survey of the Catalan population aged 15 and over. In general terms, libraries and librarians benefit from a positive image, although one third of non-users would have no motivation for visiting a public library (again). Most are ex-users (81%) who had visited a public library but not in the last year. Individuals seem to stop using the public library when they end their educational period, with disengagement affecting more men than women. Never-users (19%) stand out among older individuals and lower educational levels. Results support the idea that different strategies must target ex-users and non-users to attract them (back) to the library as both their profiles and opinions on the public library are different. © 2018 El Profesional de la Informacion. All rights reservsed.