Hello everyone! I recently created a visualization of popular book covers by genre. You can access it here here.

For those interested, here is the GitHub Repository with my code.

I created these visualizations using Python and Jupyter Notebooks by gathering data from GoodReads.

The nine images you see were each produced by taking the difference between a pixel's average value within a given genre and its average value among all books surveyed. These differences were then doubled (for contrast) and added to an all grey image. This process was done to normalize the yellow hue which was present in every genre before the transformation.

For example, the image representing the horror genre above appears red. This does not mean the average pixel used in horror covers is red, but rather that horror covers are significantly more red than the average book cover.