Since very early printing times many publishers adopted colophons: logos or emblems that can be quite elaborate but are nonetheless easy to add to a page or binding if you have a printing press and can make a die.
For example some old ones that Oxford University Press used in the 1500s and 1600s: https://www.gutenberg.org/files/61421/61421-h/images/illus6a...
I wanted a logo that felt like a colophon to complete the printerly effect that I wanted for the site design.
I have a hobby of viewing artwork from online sources that archive the kind of stuff that almost never make it into museums: sketches, prints, photographs, etc. Not because this art is low quality, but because there is so much of it that it couldn't possibly be displayed. Actually, I curate a list of high quality digitized sources for such: https://simonsarris.com/art-collections
I save a lot of it. So looking through some saved pieces, I came across the sketch of the nude reading, and cleaned it up a bit. It's by James Abbott McNeill Whistler, late 1800s (public domain of course). Not remotely one of his famous works, which are pretty much all paintings.
I was going to redo the sketch in SVG, so that dark mode readers would be able to invert it better, but getting sketch lines to look good in SVG actually takes considerable effort, so its just a jpeg for now.