One is that the cover of the book can be made of PP synthetic tape, PP synthetic tape and photographic paper. This cover needs to be designed by a designer and then sprayed out by a photo machine. If you make such a cover, the cost will be high, but the advantage is that the cover is bright and clear, and you can design your own style cover according to your needs.
Second, going to a stationery store to buy the cover of a hardcover book has the disadvantage of fading. But it can also be used as the cover of a book, which is cheaper. The inner page can be made of ordinary printing paper or copy paper. If it is more beautiful, you can insert some color copy paper (note that this is not inserted casually, you can insert some sections, just to play the role of a deputy cover, otherwise there will be overall chaos.