In printmaking, an edition is a number of prints struck from one plate, usually at the same time. This is the meaning covered by this article. This may be a limited edition, with a fixed number of impressions produced on the understanding that no further impressions (copies) will be produced later, or an open edition limited only by the number that can be sold or produced before the plate wears. Most modern artists produce only limited editions, normally signed by the artist in pencil, and numbered as say 67/100 to show the unique number of that impression and the total edition size.
An important and often confused distinction is that between editions of original prints, produced in the same medium as the artist worked (e.g., etching, or lithography), and reproduction prints (or paintings), which are photographic reproductions of the original work, essentially in the same category as a picture in a book or magazine, though better printed and on better paper. These may be marketed as …