If you’ve go through the area earlier mentioned about metallic foil stamping, the procedure will be easy to photo. During the stack of products: your cover on The underside. Over it the (optional) foil and then the steel stamp (die) having a reversed version of the form or design protruding. https://kindleselfpublish.home.blog/2024/12/07/top-features-of-the-best-self-publishing-companies-uk/