Shown here is a visualization A Year and a Day by Virginia Henley, a novel that takes place in medieval Scotland (think Braveheart) and tells the story of a romance between a conquering warrior and a woman whose castle he invades.
A book isn’t a flat, two-dimensional thing, so book summary statistics – such as that a book is 17% about Vampires – only partially represents what a book is about. Any reader will tell you that a book has ebbs and flows, like currents in a river. Like a Thematic Current. And visualizing it can be interesting…
…As you can see, the thematic currents [in A Year and a Day] deal heavily with ancient or medieval setting, strong romance, family (much of the story deals with having heirs), and warfare. More specifically, you can see where major battles occur, where major romantic engagements occur, and where pain and suffering occurs during and after combat.
Image: Detail from Visualizing the Thematic Flow of a Book. Via Booklamp.org.