Book Similarity Visualisation

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Layout

Each circle represents a book found in the Lambton Miners' and Mechanics' Institute. Only books that were borrowed by at least 20 people across all libraries in the ACRP database are shown.

The size of a circle is indicative of the number of its borrowers.

The similarity of any two books is defined to be the proportion of their borrowers they have in common. The books are arranged so that similar book are placed closer together than books that are less similar.

Controls

Hovering over a book's circle will reveal its title. The number in brackets is the number of borrowers.

Clicking on a circle will show its "neighbours" — those books that are most similar to it.

The number of books and neighbours displayed are controlled by the two sliders at the bottom of the visualisation.

Borrowers
Only books with at least this many borrowers are displayed.
Similarity
Links to neighbouring books are only shown if the two books share at least this proportion of their borrowers.

More Information

A longer description of this visualisation and the data it is based on can be found at Inductio Ex Machina

Built with Processing by Mark Reid.