The National Technical Library has provided access to twelve early printed books and their binder’s volumes from the 18th century. The printed books are written in German, with smaller parts in some being in French. In terms of content, these are mostly works on architecture. The oldest volume is an introduction to civil engineering by Augustin-Charles d'Aviler, printed in Amsterdam in 1700; some digitised prints contain only sets of copperplate engravings with views of individual buildings or their parts and their ground plans.