How can I see the exact prompt BookyAI sent to generate my cover?

From version 1.9.7, after a front or back cover is generated in the book's workspace, a "View the prompt sent for the front/back cover" link appears under the covers. It shows the full text sent to the image model, including your own description if you used "My prompt", so you can refine it and generate again. In the Cover Studio, the prompt is stored with each generated cover in the gallery.