- Thomas Kellner's 34th monograph: the most comprehensive content and artistic treatment of the history of chapel schools that has been published to date So this book really has it all. Thomas Kellner's 34th monograph is probably the most comprehensive content and artistic treatment of the history of chapel schools that has been published to date. The book embeds itself in Kellner's cultural-historical Siegerland works. "Thomas Kellner's complex of works invites us to look with extraordinary perspective on architectural details, on the overall form, the dimensional -relationships and proportions of the photographic -reformulation, interest for the efforts and the importance of the education in rural areas, which is the cultural background, the "humus" of the architectural phenomenon of chapel school." - Andrea Gnam Text in English and German.