Hardcover printing refers to an exquisite production method of books. Hardcover printed books are mainly made after various modeling processes are performed on the cover, the spine of the book block, and the corners of the book.
There are various processing methods and forms, such as round back (ridged or no ridge), square back, square corners and round corners in book block processing;
Cover processing is divided into whole surface, joint surface, square and round corners, hot foil, hot stamping pattern and so on.