Typing paper is any paper suitable for use in a typewriter. Typing paper typically holds ink well and is easy to read, and corrections can be made cleanly on it. Erasable bond and onionskin paper are two specialized versions of typing paper.
As typed paper copies of documents are often retained as permanent records, typing paper that not only takes and holds ink well over time but also that does not deteriorate is preferable.
Onionskin paper is slightly translucent and lightweight, making it useful for mailing correspondence and for storage. Erasable bond paper makes it easy to correct typing errors, although it also makes it easier to damage documents with smudges easier as well.
With the transition from typewriters to personal computers, inkjet and laser printers, typing paper has given way to printer paper, the characteristics of which have evolved to meet the requirements of ever-changing printer technologies.