Paper size impossible to encounter ISO standard papers in day-to-day uses, with "Carta" (Letter), "Oficio" (Government-Legal) and "Doble carta" (Ledger/Tabloid) being nearly universal. In Canada, US paper sizes are a de facto standard. The government, however, also uses ISO paper sizes. There is an additional paper size, , to which the name "Government-Letter" was given by the IEEE Printer Working Group (PWG). It was prescribed by Herbert Hoover when he was Secretary of Commerce to be used for US government forms, apparently to enable discounts from the purchase of paper for schools, but more likely due to the standard use of trimming
Ledger art Ledger art Ledger art is a term for Plains Indian narrative drawing or painting on paper or cloth. Ledger art flourished primarily from the 1860s to the 1920s. A revival of ledger art began in the 1960s and 1970s. The term comes from the accounting ledger books that were a common source of paper for Plains Indians during the late 19th century. Ledger art evolved from Plains hide painting. Among Plains tribes, women traditionally paint abstract, geometrical designs, whereas men paint representational designs. The men's designs were often heraldic devices or visions painted on shields, tipis, shirts, leggings, or robes.