A case-bound hardback book covered with coloured (e.g. Efalin) or printed paper. The book is wrapped with a dust jacket, usually printed in four-colour.
A case-bound hardback book covered with printed paper, glued to the cover board.
Softcover and paperback, also with flaps
Soft cover (left) does not have a hard case; the cover is printed on coated board with a basis weight of 240 grams.
Paperback (right) has a simpler paper and a slightly thinner coated board with a basis weight of 220 grams. We optimise the choice of material to make as cost-effective a product as possible.