hey that is a good question...and as things go good questions usually have been asked before. Have you tried to look at the copyright law sites? there are some things that cannot be copyrited, a list of city names is a compilation, which is composed of not copyrightable information that is compiled in a unique way, like say your phone book...someone gets tripped up when they copy word for word, to catch this there are often fake names that are put the list. A book on vitamins is not going to be a violation of copyright, there are only so many ways one can describe vitamins, there is standardized ways of doing a lot of things which, unless there is a unique idea some things just are there for everyone to copy.... if this was not true we would not have poser dudes and dudettes...which are basically copies of human body forms...which forms maybe bent in creative ways but the shape of a human being in general can be copied and is. So as far as the original question is concerned I am curious to see how those that makes those decisions in the store end up deciding this....:-)