Publishers' Casings and Paperbacks
It is a light straw-board cover, over which an attractive coloured cloth is glued. This casing is attached to the book itself by narrow tapes projecting beyond the spins to which they are glued. This is usually reinforced by mull fabric and protected by the end papers pasted on the inside of the cover.
As a rule majority of fiction, popular editions of books, student editions and others are published in this form of binding. These kinds of books are meant for public and hence their price has to be within their reach. It is possible only if the paper and binding is of inferior type. The paper used in such books is a bit stronger that that of newsprint and the binding is of hard paper only.