Softcover Book Printing, which is the most common printing method for book publishing, keeps printing costs in check.
Paperback is the most common of them all, because the printing cost of paperback will be very low, so in this case, the publisher can control the cost of printing, even if it is a large amount of printing, it will not be too much. Funding, this is also a method that readers prefer. Although hardcover books look very beautiful, paperback books are more convenient to hold.