One of the book binding forms. Not a paperback. Generally, it is hard paper, leather, fabric, plastic and so on. They are all used for covers, and some books are covered with cloth, which requires high technology.
Hardcover books are mainly made on the cover, back and corners of the book block through various modeling techniques. There are many processing methods and forms, such as round back (with or without ridge), square back, square corner, rounded corner and other book blocks. Cover processing is divided into whole surface, bonding surface, Fiona Fang angle, foil pressing, hot stamping pattern, etc.
paperback
Paperback is also called "paperback". It is a common book binding form after summing up the advantages of Bao Beizhuang and thread binding. The main processes include folding, assembling, binding, cover and trimming. Paper covers are generally used. This method is simple and low cost, and is suitable for books with small paperback pages and large print runs.
Source: Baidu Encyclopedia