When I read old novels, I enjoy the engravers’ work. Sometimes the illustrations begin new chapters or appear in line with the text to add weight to a description. Whether or not one believes an illustration is worth a thousand words, the graphics, in my opinion, helped convey the novel’s places and characters and events to the readers.
I’m always happy when the publishers of modern-day novels take the trouble to add a reoccurring graphic at the book’s chapter beginnings, or better yet, graphics that fit the text here and there throughout the book.
Unless an author is an artist, the first roadblock today comes from having to hire an illustrator, and that might just be an expense that’s higher than what the book is projected to earn. Yes, there are stock agencies where one can find illustrations, but their use is typically limited to cover artwork.
The second issue is copyright. Sorting that out might be a nightmare to just determine who owns it; and then, if anyone does own it, getting permission and paying a fee to use it (sometimes waved for educational books).
In my case, I mention real products in my novels, partly to set the scene, partly to give the reader a sense of the times, and partly just to show what I’m talking about. For example, if I were writing a novel set in Montana in the 1800s, I would probably mention (or have the characters attend) one of the presentations of the traveling Shakespeare companies. Showing a handbill would be wonderful. Or, I would have one of my characters who likes chewing tobacco get swept up in the craze of related products. I love the artwork from the Juliet tobacco pouch.
If I could draw (ha ha), I might create a black-and-white illustration of the downtown of one of my made-up towns, showing what such a place might have looked like during the time when the novel is set. No, I don’t want a graphic novel. Just a few drawings to convey the ambiance of the stories.
My contemporary fantasy novel “The Sun Singer” is currently free on Kindle.