kartonnage

Kartonnage is a term used in bookbinding to describe a hardbound binding in which the book block is attached to rigid cover boards made of thick cardboard (karton) and then wrapped with cloth, leather, or paper. In publishing, a kartonnage edition refers to what English speakers would call a hardcover or case-bound book; it contrasts with paperback editions whose covers are flexible.

The construction typically involves cover boards of substantial thickness, covered with fabric, leather, or decorative paper. The book block is attached to the boards by a spine, often with endpapers that join the inner pages to the covers. Finishing details may include a spine title, foil stamping, and sometimes a dust jacket; the overall appearance emphasizes a durable, reusable exterior.

Historically, kartonnage became widespread with the adoption of tougher pasteboard or paperboard in the 19th century, enabling cheaper production of hardbacks. It has since remained the standard format for many quality editions, academic works, and mass-market hardcovers, though regional and publisher variations in materials and decoration exist. In libraries and catalogs, kartonnage typically denotes the hard cover variant, distinct from leather bindings or from softcover formats.

Today kartonnage remains the predominant form of hardcover books in many markets. It offers durability and good protection for the pages, while supporting a range of finishes from cloth and leather to decorative paper. The format is compatible with features such as dust jackets, illustrated endpapers, and varied binding aesthetics, making it a flexible choice for both practical use and collecting.