In this impressive volume, Archaeolingua publishes the drawings of the well-known artist Frigyes Konig, rector of the Hungarian University of Fine Arts, about castles and fortifications in the Carpathian Basin. The detailed drawings, accompanied by notes and precise measurements, are important sources for archaeology, architecture and art history. They present surviving castles and fortifications from prehistory to the Modern Period to a wider audience in high artistic quality. In the foreword, Erno Marosi, member of the Hungarian Academy of Sciences, provides an introduction to current reconstruction techniques as well as a professional overview of the drawings. The architect Zsolt Vasaros' afterword helps with the interpretation of Frigyes Konig's works. Hungarian and English text.