If the book is a hardback its path through the bindery will involve more points of activity than if it is a paperback. Unsewn binding is now increasingly common. The signatures of a book can also be held together by "Smyth sewing" using needles, "McCain sewing", using drilled holes often used in schoolbook binding, or "notch binding", where gashes about an inch long are made at intervals through the fold in the spine of each signature. The rest of the binding process is similar in all instances. Sewn and notch bound books can be bound as either hardbacks or paperbacks.
If the book is a hardback its path through the bindery will involve more points of activity than if it is a paperback. Unsewn binding is now increasingly common. The signatures of a book can also be held together by "Smyth sewing" using needles, "McCain sewing" using drilled holes often used in schoolbook binding, or "notch binding", where gashes about an inch long are made at intervals through the fold in the spine of each signature. The rest of the binding process is similar in all instances. Sewn and notch bound books can be bound as either hardbacks or paperbacks.