The aim of the paper is to inform the professional public about the project of processing mutual correspondence of Jan Novák and his teacher Bohuslav Martinů in the years 1947–1959. Sources for this work are part of the unprocessed estate of Jan Novák relatively recently deposited in the Czech Museum of Music in Prague. The primary research on the subject of the project will be realiz... https://parisnaturalfoodes.shop/product-category/activated-charcoal-floss/