@amphailin We will definitely be covering layers for foils and spot varnishes. It's an important part of making a book cover so it needs to be in there.
Text beveling in photoshop is more of a photoshop/font topic and is so specific that I'm not sure we will be going into too much detail there. Although I can address it if it's an area you are interested in.
But, it should be noted that this is a conceptual illustration class and not a technical photoshop or font class. We will be asking you to design/Illustrate different covers for books with different parameters and subject matter. It's more about getting a solid image that works well for the story and style of the subject matter.