The Short Title Catalogus Vlaanderen (STC Flanders, www.stcv.be) is a tool
for book historical research, offering a representative sample of the output of
the printing press in the 17th century. To show the broad scope of this production,
this article presents the example of 100 books printed in 1621. After
an overview of subject matters (current events, theology, literature, history,
state publications and law), printing is studied as an economic activity.
Different categories of printers can be distinguished: a select group of entrepreneurs
specialise in massive theological undertakings (Moretus, Nutius,
Bellerus) while another, larger group has a more diverse output. Typography
is presented as a way to investigate reading habits. Many questions remain,
but the STCV database presents a first big step towards answers.