Aim. The pedagogical concept of Łejery, created in Poznań by Jerzy Hamerski and developed in 1975, places the child in the centre. Primary School No. 83, where Łejery has implemented its vision of democratic education and education through theatre since 1990, is the only public school of this type in Poland. The research goal of the study is to show Hamerski’s path to the creation and development of his unique pedagogy. Methods and materials. The study uses methods: biographical and source analysis (studies, press mentions posted on the Internet, studies posted on websites, magazine articles, and interviews conducted by the author with Hamerski and Elżbieta Drygas). The sources were subjected to content analysis and interpretation, during which the following variables were identified: importance of the childhood and youth biography of Hamerski for the formation of the foundations of Łejery pedagogy; importance of the early pedagogical experiences of Jerzy for the development of the idea of Łejery pedagogy; and Hamerski’s cooperation with Elżbieta Drygas as the basis for creating systemic solutions and developing Łejery pedagogy. Results and conclusion. Hamerski consistently strived to create and develop child-oriented pedagogy, devoting his entire life to this mission. The Łejery pedagogy is the result of Jerzy’s family and pedagogical experiences, and it has systemic solutions because of the cooperation of Hamerski with Drygas. Proof of the effective implementation of the assumptions of Łejery pedagogy are statements by people associated with the school environment and the existence of Łejery over the course of 50 years.