Softcover book binding have saddle stitch, spiral binding, perfect binding and perfect binding with sewn. Perfect binding and perfect binding with sewn are the most common form of binding.

Perfect binding - Pages are stacked and milled along the spine to improve the bond between the paper and the glue. This kind of binding is cheaper than perfect binding with sewn, but the pages are easy to fall off.

perfect binding with sewn - Similar to regular perfect binding with an addition of flaps on the cover to create a “dust-jacket like” book in paperback format. Pages are stacked and milled along the spine to improve the bond between the paper and the glue. An industrial glue is applied to the spine where the pages are then mated to a card-stock cover. This kind of binding is becoming a popular new format and offers a more elegant presentation to a softcover book.

Book paper:

Usually soft cover books the paper use art paper with gloss/matt lamination. The paper stock has 200gsm/250gsm/300gsm/350gsm. For notebook the inner paper use offset paper or wood-free paper, the paper stock has 60gsm/80gsm/100gsm/120gsm/140gsm/160gsm. For color book the inner paper use gloss/matt art paper, the paper stock has 80gsm/105gsm/128gsm/157gsm.