Folio edition

A Folio edition refers to a way of printing and formatting books where each sheet of paper is folded only once, creating two leaves or four pages, roughly the size of traditional large books. The term "folio" historically denotes a book size created by this folding method. Folio editions are often used for important or historical texts, as they are more spacious and can display detailed illustrations or calligraphy. This format emphasizes quality and presentation, making the book more durable and visually impressive, often reserved for special or collectible editions.