Berkouwer wrote a new theological short essay in almost every issue of the GKN weekly "Gereformeerde Weekblad," which garnered responses from clergy and laity all over the Netherlands and beyond. A good part of the articles arose from class lectures to his students at VU, where the newspaper letters of response might carry some weight and sometimes occasioned Berkouwer's refinements for his students. The newspaper theological-articles, letters of response, and classroom refinements in turn led to the publication of books over many years under the general series name, "Studies in Dogmatics" (the last word usually being rendered in English as "systematic theology").