在涉及假冒艺术品的案例中,一般有以下几种情况:一是伪造一幅作品,或伪造艺术家的签名、作品的相关文件,使购买者相信这是某艺术家的真迹;二是仿作,包括临摹复制的作品,或者与某“大师”风格相似,出自同一艺术流派的作品,有时一些仿作可能会因被错误地鉴定为“大师”原作而被出售;第三种情况是(非艺术家本人)更改的作品(altered art),包括把过大尺寸的作品裁开、补完未完成的作品等为了促进销售或提升市场价值而采取的手段。不论是在私人交易还是公开拍卖中,对许多艺术品的购买者来说,更关心 In the cases involving counterfeit artwork, there are generally the following cases: one is to forge a piece of work or fake the artist’s signature or the relevant documents of the piece so that the purchaser believes it is the authenticity of the artist; the second is imitation, Including works copied or copied, or works by the same genre of art, sometimes copied for sale, may be mistakenly identified as “master”; the third case Is an altered art (non-artist’s own), which includes the means of cutting over-sized works and supplementing unfinished works to promote sales or enhance market value. Whether in private or public auction, for many art buyers, more concerned about