Paper size a number of different sizes were defined for large sheets of paper, and paper sizes were defined by the sheet name and the number of times it had been folded. Thus a full sheet of "royal" paper was 25 × 20 inches, and "royal octavo" was this size folded three times, so as to make eight sheets, and was thus 10 × inches. Imperial sizes were used in the United Kingdom and its territories. These sizes are no longer commonly used since the UK switched to ISO sizes. Many of these sizes were only used for making books (see bookbinding),
The Bookmaking Habits of Select Species The Bookmaking Habits of Select Species The Bookmaking Habits of Select Species is a short story by Ken Liu that compares and contrasts five fictional alien species' unique styles of reading and writing. A species of music who believe their writing system is superior to all. An Allatian author speaks as he writes, causing his nose to vibrate and etch grooves into the surface of a metal tablet covered in wax or clay. To read, one uses their nose to follow through the grooves, while a hollow chamber in their skull turns the vibrations to sound, recreating the author's voice,