The book «Neu-Triumphirende Fortification auff allerley Situationen, defensive und offensive zu gebrauchen» by the author Ernst Friederich von Borgsdorf, a Austrian engineer Baron, was published in 1703 in Vienna by Johann Georg Schlegel. The title suggests a manual on the use of newly triumphant fortresses in all kind of situations, is to be found in this book. After the cover page, the author dedicates his work to “the most illustrious, greatest Prince and Lord, Lord Josepho, elect Roman, as well as Hungary, Dalmatia, Croatian and Slavonia, King”, a convention already seen in Vitruvius to advertise and justify buildings as monuments of the sovereign’s rein. On the next page, Ernst Friederich turns to the art-loving reader, which implies the text is not particularly technical in engineering, it is however, directed to a reduced highly educated (and wealthy) circle. The list of content shows that – after a brief introduction on the identity, use and classification of fortifications – the volume is divided in six main sections covering: 1) regulated royal fortresses, 2) regulated citadels and their fortresses, 3) regulated auxiliary works, 4) regulated contra-approaches, 5) sections and 6) regulated field jumps. A last chapter on irregular defensive fortifications rounds up these six main sections. An errata summarizes the printing errors at the end of the written text. Each chapter is complemented by illustrations by Johann Andreas Pfeffel at the end of the book. Among the illustrations, scaled floor plans of fortresses and citadels (sometimes including their orientation), sections on detailed drawings and profiles of field jumps are represented. All in all, this book contains 398 pages and 116 partly folded illustrations, in a cover of 16 x 22 cm, mirroring the importance of fortresses at the time.