In the UK, whilst design right and copyright can subsist in the same article, for example the original shape of a teapot might attract unregistered design right whilst the pattern applied to it might attract copyright, the law has distinguished between artistic works and commercial designs. A work that is created, broadly speaking, for functional use, will attract design right whilst an artistic work (a book, piece of music or sculpture) will attract copyright. Broadly, the distinction acknowledges that whilst it is appropriate that a unique creative work should enjoy copyright protection for the life of the author plus 70 years, this is not appropriate in the world of industrial/commercial design where design is expected to evolve more rapidly and to do so on the back of the existing design corpus. Design rights last for a much shorter period of time, usually 3-10 years, unless the design is registered in which case protection can last for up to 25 years.