Polish and foreign educational research on emotions is constantly developing. Scientific research conducted in schools and public libraries has not yet focused on the emotions felt by children in libraries. The article aims to reflect on the library as an educational space with its own emotional climate and to analyse the results of the pilot study and the primary version of the School Library Emotional Climate Questionnaire tool used in it. The study was conducted in a public primary school in Poland between April 2023 and June 2023 and 57 respondents took part. The study’s conclusions emphasise the importance of research on the emotional climate of libraries in developing solutions to improve the quality of functioning of this educational space.