This is a plugin that I found for a slider which might be the best option for you.
This is a carousel and you can have one or two rows of these. You cannot control the speed at which it rotates.
You can show 3, 4 or 5 books.
This is a gallery of images. They can be cropped to squares, or actual book sizes. You can have 2, 3, 4, or 5 columns and as many rows as you put into the gallery. When you click on the book it would go to that book page (I didn’t add the links, just to save time)