Since the book “Oeuvres d’Architescture” by the author Marie-Joseph Peyer consists largely of pictures, I have tried to describe them in order to find a similar book. However, this did not turn out to be very easy, as it was very difficult to choose terms that describe the book and the pictures it contains. I always had the problem that I either got way too many results or none at all. Therefore I only searched for the author Marie – Joseph Peyre on Alice. I was hoping to come across architects from his time or his environment who might have also written a work like “Oeuvres d’Architcture”. That’s how I came across the name of Charls de Wailly. Like Peyre, he was a French architect of the 18th century. He was in contact with Peyer because in 1779 he was commissioned to build the theater of the Comédie-Française, today’s Théâtre National de l’Odéon. Even after a long search I couldn’t find a book by Charls de Wailly. What he also had, however, was a collection of prints dealing with Roman and French architecture, similar to Peyer’s. I was also looking for French architecture of the 18th century on Xenotheka, and that’s how I came across the book Monumens érigés en France a la gloire de Louis XV by Pierre Patte. In this he deals on the one hand with monuments that were built to the glory of rulers, on the other hand this book also contains ideas for future projects for the capital Paris. Like Peyer’s “Oeuvres d’Architescture”, this was aimed at the then King of France, Louis XV. However, the two works differ from each other in that Patte Louis not only praises Louis XV, but indirectly criticizes him because, in his opinion, he does not care enough about the development of Paris.