The National Technical Library provided access to nine early printed books in 2018. The earliest of them is the Italian translation of Euclid’s work printed in Venice in 1585 (A 232); the treatise on trigonometry by Georg Friedrich Meyer containing numerous woodcuts (A 241) comes from Basel from 1678. The other printed books come from the 18th century, mostly from Germany and one from Italy. In terms of content, they are texts on mathematics but also presentations of inventions for entertainment.