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Textbooks are produced in large volumes and used intensively, which makes binding method selection critical. Two commonly used methods are thread sewing and perfect binding, each with distinct structural characteristics. Thread sewing binds folded sections together using thread before the cover is applied. This method creates a strong spine and allows the book to open flat. Pages are mechanically locked, reducing the risk of page loss even after years of use. Perfect binding relies on adhesive to hold loose pages together at the spine. It is faster and more economical for short-to-medium lifespan products. However, adhesive strength depends heavily on paper type, spine preparation, and glue quality. For textbooks that are thick, frequently opened, or required to lie flat, thread sewing offers clear advantages. Perfect binding is often used for thinner textbooks, exam preparation books, or materials with shorter usage cycles. The correct choice depends on usage conditions rather than cost alone. A binding method that fails prematurely often leads to reprinting costs that exceed the initial savings. |