Large-scale temporal and spatial dynamics of the evolving publishing landscape

Furthermore, we show how external sources of metadata, for instance, on authors, publishers, or geographical places, can be used to enrich and verify bibliographic information. This type of ecosystem has potential for wider implementation in related studies and other bibliographies.

Research cases

The aim with the research cases: describing transnational trends and providing example analyses that challenge a national view of these topics by focusing on the development in individual cities, not the national average. (Also: average/median.) 
Cases: vernacularization & octavo format (when does the format cease to be interesting?)
Suggestions for figures:
CERL 1: Top 100 publication places in CERL for the total number of books published in 1700-1799
Vernacularizations 1: Amounts of pages per year published in different languages in Kungliga 1600-1900 (suggestion: scatter plot with standard deviation)
Vernacularizations 2: Amounts of pages  per year published in different languages in published books in Stockholm, Gothenburg, Lund and Linköping according to Kungliga, 1600-1900 (suggestion: scatter plot with standard deviation)  
Vernacularizations 3: Amounts of pages  per year published in different languages in published books in Turku, Helsinki, and Vyborg according to Fennica, 1640-1900   (suggestion: scatter plot with standard deviation)
Vernacularizations 4-15 (for our purpose only): Share of languages per year in published books in Turin, Barcelona, Paris, Vienna, Budapest, Prague, Heidelberg, Berlin, Amsterdam, Leiden, Copenhagen and Lund according to CERL, 1400-1820  (start as early as possible for each city) (suggestion: scatter plot with standard deviation)
Octavo 1: Amounts of pages per year published in different book formats in Kungliga 1600-1900 (suggestion: scatter plot with standard deviation)
Octavo 2: Amounts of pages per year published in different book formats in Stockholm, Gothenburg, Lund and Linköping according to Kungliga, 1600-1900 (suggestion: scatter plot with standard deviation)  
Octavo 3: Amounts of pages  per year published in different book formats in published books in Turku, Helsinki, and Vyborg according to Fennica, 1640-1900   (suggestion: scatter plot with standard deviation)
Octavo 4 (test case for us only): Share of book formats per year in published books in Turin, Barcelona, Paris, Vienna, Budapest, Prague, Heidelberg, Berlin, Amsterdam, Leiden, Copenhagen and Lund according to CERL, 1400-1820  (start as early as possible for each city) (suggestion: scatter plot with standard deviation)
Combined 1: Shares of different book formats in different languages in Kungliga for 1650, 1700, 1750 and 1800 for Stockholm, Lund, Gothenburg and Linköping (not sure how to visualize this) 
Combined 2: Shares of different book formats in different languages in CERL for 1650, 1700, 1750 and 1800 for Turin, Barcelona, Paris, Vienna, Budapest, Prague, Heidelberg, Berlin, Amsterdam, Leiden, Copenhagen and Lund (not sure how to visualize this)  

Discussion

Our systematic approach provides a starting point and guidelines for more extensive integration of national catalogues.
ESTC? CERL? Open ecosystems? Research support? Open data? Open science? Open methods?
National bibliographies are essentially about mapping the national canon of publishing, but integrating data across borders should be managed in a way that takes into account specific local circumstances while also helping to overcome the national view in analyzing the past. We are now expanding our pilot study on the Finnish and Swedish bibliographies towards large-scale integration of national bibliographies in the CERL Heritage of the Printed Book Database. Such integration can help scholarship to reach a more precise view of print culture beyond the confines of national bibliographies.
Future perspectives.