printing-in-china.cn/books-soft-cover1.htm
Gold Printing Paperback describe and refer to a book by the nature of its binding. The covers of such books are usually made of paper or paperboard, and are usually held together with glue rather than stitches or staples. Inexpensive books bound in paper have existed since at least the 19th century and exist in a number of formats that have specific names, such as pamphlets, yellowbacks, dime novels and airport novels. Most softcovers are either "mass-market softcovers" or "trade softcovers". In contrast, books with hardcover made of cardboard are more expensive but last longer.

Paperback book printing
 is the most common way to bind or finish a book. they cost a lot cheaper in contrast to their hardcover counterparts. Paperback book printing mostly uses cheaper paper quality glued together and then covered in a thicker sort of paper or cardboard making them cheap and the most relevant option for many books.