UniqueOne of a kind piece, created by the artist.Limited editionOriginal works created in multiple with direct involvement of the artist. Generally, less than 150 pieces total.Made-to-orderA piece that is made-to-order, taking into account the collector’s preferences.ReproductionReproduction of an original work authorized by artist’s studio or estate. The artist was not directly involved in production.Editioned multiplePieces created in larger limited editions, authorized by the artist’s studio or estate. Not produced with direct involvement of the artist.Non-editioned multipleWorks made in unlimited or unknown numbers of copies, authorized by the artist’s studio or estate. Not produced with direct involvement of the artist.EphemeraItems related to the artist, created or manufactured for a specific, limited use. This includes exhibition materials, memorabilia, autographs, etc.