Grammage ream developed because such a size can easily be cut into sixteen 6 by book sized sheets without significant waste. Early newsprint presses printed sheets in size, and so the ream dimensions for newsprint became , with 500 sheets to a ream. Newsprint was made from ground wood pulp, and ground wood hanging paper (wallpaper) was made on newsprint machines. Newsprint was used as wrapping paper, and the first paper bags were made from newsprint. The newsprint ream standard also became the standard for packaging papers, even though in packaging papers kraft pulp rather than ground wood was used for
Inkjet paper include coatings engineered to receive and hold ink. Fine art papers are usually made of rag pulp (100% cotton being the most common) but may also be have an alpha-cellulose base. Some descriptions and comparisons of fine art inkjet papers are here, here, here, and here. Some fine art papers are mold made, while others are machine made, and may vary considerably in surface texture. Many fine art papers are available in pre-cut sheets or in rolls. Standard office paper has traditionally been designed for use with typewriters and copy machines, where the paper usually does not get wet. With