Generally, quartos have more squarish proportions than folios or octavos. Sometimes, additional leaves would be inserted within another group to form, for example, gatherings of 8 leaves, which similarly would be sewn through the central fold.
Each group of 4 leaves (called a "gathering" or "quire") could be sewn through the central fold to attach it to the other gatherings to form a book. Each leaf of a quarto book thus represents one fourth the size of the original sheet.
Text folio meaning full#
These terms are discussed in greater detail in book sizes.Ī quarto (from Latin quārtō, ablative form of quārtus, fourth) is a book or pamphlet made up of one or more full sheets of paper on which 8 pages of text were printed, which were then folded two times to produce four leaves.
Quarto is also used as a general description of size of books that are about 12 inches (30 cm) tall, and as such does not necessarily indicate the actual printing format of the books, which may even be unknown as is the case for many modern books. The earliest known European printed book is a quarto, the Sibyllenbuch, believed to have been printed by Johannes Gutenberg in 1452–53, before the Gutenberg Bible, surviving only as a fragment. Each printed page presents as one-fourth size of the full sheet. The leaves are then trimmed along the folds to produce eight book pages. Quarto (abbreviated Qto, 4to or 4º) is the format of a book or pamphlet produced from full sheets printed with eight pages of text, four to a side, then folded twice to produce four leaves. Quarto metrics compared to the folio and octavo.
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