At the Circulating Library Data Visualizations: Miscellaneous

Number of Titles Serialized per Year

Note: Titles listed by the date of first serialization. Serialization data post 1890 less comprehensive. Lists of serialized titles per year can be found on the Serializations by Year page.

Number of Titles Published by Genre per Year

Note: Lists of titles by genre can be found on the Genres page.

Number of Titles Illustrated per Year

Note: The sources consulted do not always indicate whether titles are illustrated, so these numbers probably undercount the true totals.

Average Title Length per Year

Note: Title length includes both the main title and the subtitle.