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Book Formats
The size of a book is generally measured by the height against the width of a leaf, or sometimes the height and width of its cover. A series of terms is commonly used by libraries and publishers for the general sizes of modern books, ranging from ''folio'' (the largest), to ''quarto'' (smaller) and ''octavo'' (still smaller). Historically, these terms referred to the format of the book, a technical term used by printers and bibliographers to indicate the size of a leaf in terms of the size of the original sheet. For example, a quarto (from Latin ''quartō'', ablative form of ''quartus'', fourth) historically was a book printed on sheets of paper folded in half twice, with the first fold at right angles to the second, to produce 4 leaves (or 8 pages), each leaf one fourth the size of the original sheet printed – note that a ''leaf'' refers to the single piece of paper, whereas a ''page'' is one side of a leaf. Because the actual format of many modern books cannot be determined fr ...
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Comparison Book Sizes
Comparison or comparing is the act of evaluating two or more things by determining the relevant, comparable characteristics of each thing, and then determining which characteristics of each are Similarity (psychology), similar to the other, which are Difference (philosophy), different, and to what degree. Where characteristics are different, the differences may then be evaluated to determine which thing is best suited for a particular purpose. The description of similarities and differences found between the two things is also called a comparison. Comparison can take many distinct forms, varying by field: To compare things, they must have characteristics that are similar enough in relevant ways to merit comparison. If two things are too different to compare in a useful way, an attempt to compare them is colloquially referred to in English as "comparing apples and oranges." Comparison is widely used in society, in science and the arts. General usage Comparison is a natural act ...
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Perfect Bound
Bookbinding is the process of building a book, usually in codex format, from an ordered stack of paper sheets with one's hands and tools, or in modern publishing, by a series of automated processes. Firstly, one binds the sheets of papers along an edge with a thick needle and strong thread. One can also use loose-leaf rings, binding posts, twin-loop spine coils, plastic spiral coils, and plastic spine combs, but they last for a shorter time. Next, one encloses the bound stack of paper in a cover. Finally, one places an attractive cover onto the boards, and features the publisher's information and artistic decorations. The trade of bookbinding includes the binding of blank books and printed books. Blank books, or stationery bindings, are books planned to be written in. These include accounting ledgers, guestbooks, logbooks, notebooks, manifold books, day books, diaries, and sketchbooks. Printed books are produced through letterpress printing, offset lithography, or other printi ...
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Guinness World Records
''Guinness World Records'', known from its inception in 1955 until 1999 as ''The Guinness Book of Records'' and in previous United States editions as ''The Guinness Book of World Records'', is a British reference book published annually, listing world records both of human achievements and the extremes of the natural world. Sir Hugh Beaver created the concept, and twin brothers Norris and Ross McWhirter co-founded the book in London in August 1955. The first edition topped the bestseller list in the United Kingdom by Christmas 1955. The following year the book was launched internationally, and as of the 2025 edition, it is now in its 70th year of publication, published in 100 countries and 40 languages, and maintains over 53,000 records in its database. The international franchise has extended beyond print to include television series and museums. The popularity of the franchise has resulted in ''Guinness World Records'' becoming the primary international source for cata ...
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California Building, Alaska Yukon Pacific Exposition, Seattle, 1909 (AYP 416)
California () is a state in the Western United States that lies on the Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares an international border with the Mexican state of Baja California to the south. With almost 40million residents across an area of , it is the largest state by population and third-largest by area. Prior to European colonization, California was one of the most culturally and linguistically diverse areas in pre-Columbian North America. European exploration in the 16th and 17th centuries led to the colonization by the Spanish Empire. The area became a part of Mexico in 1821, following its successful war for independence, but was ceded to the United States in 1848 after the Mexican–American War. The California gold rush started in 1848 and led to social and demographic changes, including depopulation of Indigenous tribes. It organized itself and was admitted as the 31st state in 1850 as a free state, follow ...
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Bunkobon
In Japan, are small-format paperback books, designed to be affordable and space-saving. The great majority of ''bunkobon'' are A6 (105×148mm or 4.1"×5.8") in size. They are sometimes illustrated and like other Japanese paperbacks usually have a dust wrapper over a plain cover. Modern bunkobon can include bestsellers and works of scholarship alike and their pocketbook size make them useful while commuting. They are used for similar purposes as Western mass market paperbacks: generally for cheaper editions of books which have already been published as hardbacks. However, they are typically printed on durable paper and durably bound, and some works are initially published in ''bunkobon'' format. ''Bunkobon'' take their name from the publisher Iwanami Shoten, which, in 1927, launched the Iwanami Bunko (Iwanami Library), a series of international works aimed "to bring the classics of new and old, east and west to the broadest possible audience." The original Iwanami Bunko s ...
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Cun (unit)
A ''cun'' ( ; Pinyin cùn International Phonetic Alphabet, IPA , mi=), often glossed as the ''Chinese inch'', is a traditional Chinese units of measurement, Chinese unit of length. Its traditional measure is the width of a person's thumb at the knuckle, whereas the width of the two forefingers denotes 1.5 cun and the width of four fingers (except the thumb) side-by-side is 3 cuns. It continues to be used to chart acupuncture points on the human body, and, in various uses for traditional Chinese medicine. The cun was part of a larger decimal system. A cun was made up of 10 fen (length), fen, which depending on the period approximated lengths or widths of millet grains, and represented one-tenth of a chi (unit), chi ("Chinese foot"). In time the lengths were standardized, although to different values in different jurisdictions. (See ''Chi (unit)'' for details.) In Hong Kong, using the traditional standard, it measures ~3.715 cm (~1.463 in) and is written "tsun". ...
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ISO 216
ISO 216 is an international standard for paper sizes, used around the world except in North America and parts of Latin America. The standard defines the "A", "B" and "C" series of paper sizes, which includes the A4, the most commonly available paper size worldwide. Two supplementary standards, ISO 217 and ISO 269, define related paper sizes; the ISO 269 "C" series is commonly listed alongside the A and B sizes. All ISO 216, ISO 217 and ISO 269 paper sizes (except some envelopes) have the same aspect ratio, , within rounding to millimetres. This ratio has the unique property that when cut or folded in half widthways, the halves also have the same aspect ratio. Each ISO paper size is one half of the area of the next larger size in the same series. Dimensions of A, B and C series History The oldest known mention of the advantages of basing a paper size on an aspect ratio of \sqrt is found in a letter written on 25 October 1786 by the German scientist Georg Christoph ...
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Penguin Classics
Penguin Classics is an imprint (trade name), imprint of Penguin Books under which classic works of literature are published in English language, English, Spanish language, Spanish, Portuguese language, Portuguese, and Korean language, Korean among other languages. Literary critics see books in this series as important members of the Western canon, though many titles are translated or of non-Western origin; indeed, the series for decades since its creation included only translations, until it eventually incorporated the Penguin English Library imprint in 1986. The first Penguin Classic was E. V. Rieu's translation of ''The Odyssey'', published in 1946, and Rieu went on to become general editor of the series. Rieu sought out literary novelists such as Robert Graves and Dorothy Sayers as translators, believing they would avoid "the archaic flavour and the foreign idiom that renders many existing translations repellent to modern taste". In 1964 Betty Radice and Robert Baldick succee ...
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Duodecimo
Paper size refers to standardized dimensions for sheets of paper used globally in stationery, printing, and technical drawing. Most countries adhere to the ISO 216 standard, which includes the widely recognized A series (including A4 paper), defined by a consistent aspect ratio of √2. The system, first proposed in the 18th century and formalized in 1975, allows scaling between sizes without distortion. Regional variations exist, such as the North American paper sizes (e.g., Letter, Legal, and Ledger) which are governed by the ANSI and are used in North America and parts of Central and South America. The standardization of paper sizes emerged from practical needs for efficiency. The ISO 216 system originated in late-18th-century Germany as DIN 476, later adopted internationally for its mathematical precision. The origins of North American sizes are lost in tradition and not well documented, although the Letter size () became dominant in the US and Canada due to historica ...
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Folio (printing)
The term "folio" () has three interconnected but distinct meanings in the world of books and printing: first, it is a term for a common method of arranging sheets of paper into book form, folding the sheet only once, and a term for a book made in this way; second, it is a general term for a sheet, leaf or page in (especially) manuscripts and old books; and third, it is an approximate term for the size of a book, and for a book of this size. First, a folio (abbreviated fo or 2o) is a book or pamphlet made up of one or more full sheets of paper, on each of which four pages of text are printed, two on each side; each sheet is then folded once to produce two leaves. Each leaf of a folio book thus is one half the size of the original sheet. Ordinarily, additional printed folio sheets would be inserted inside one another to form a group or "gathering" of leaves prior to binding the book. Second, folio is used in terms of page numbering for some books and most manuscripts that are b ...
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Paper Size
Paper size refers to Technical standard, standardized dimensions for sheets of paper used globally in stationery, printing, and technical drawing. Most countries adhere to the ISO 216 standard, which includes the widely recognized A series (including A4 paper), defined by a consistent aspect ratio of √2. The system, first proposed in the 18th century and formalized in 1975, allows scaling between sizes without distortion. Regional variations exist, such as the #North American paper sizes, North American paper sizes (e.g., Letter (paper size), Letter, Legal paper, Legal, and Ledger paper, Ledger) which are governed by the American National Standards Institute, ANSI and are used in North America and parts of Central and South America. The standardization of paper sizes emerged from practical needs for efficiency. The ISO 216 system originated in late-18th-century Germany as Deutsches Institut für Normung, DIN 476, later adopted internationally for its mathematical precision. ...
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Grammage
Grammage and basis weight, in the pulp and paper industry, are the area density of a paper product, that is, its mass per unit of area. Two ways of expressing the area density of a paper product are commonly used: * Expressed in grams (g) per square metre (g/m2), regardless of its thickness ( caliper)International Standard ISO 536: Paper and board – Determination of grammage. International Organization for Standardization, Geneva. (known as ''grammage''). This is the measure used in most parts of the world. It is often notated as ''gsm'' on paper product labels and spec sheets. * Expressed in terms of the mass per number of sheets of a specific paper size (known as ''basis weight''). The convention used in the United States and a few other countries using US-standard paper sizes is pounds (lb) per ream of 500 (or in some cases 1000) sheets of a given (raw, still uncut) basis size. The traditional British practice is pounds per ream of 480, 500, 504, or 516 sheets of a give ...
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