The book contains only two pages of text in two sections. The first section is addressed to a prince in France at the time and the second section is addressed to the reader. The two sections are composed of a single column with wide margins. The font is about 5 mm tall and resembles Carolingian writing. The rest of the pages contain architectural drawings of Roman antique building in perspective view. The images are always depicted in frontal perspective from slight elevation looking down. They are presented in groups of two per page one above the other. They are not referenced, numbered, or listed in an index. The only writing accompanying the illustrations are the names of the buildings given within the drawings. The images are the most important part of the book and occupy about 95% of the book. The book may suggest a reading as a documentary of examples of antique Roman architecture. As it is addressed to the prince it may have had the purpose to educate the royalty about the standards and principles of antique architecture in order to apply this style also in representative buildings of the French royalty.