I’m not sure I agree with this PCWorld Blogger, but it is certainly an interesting concept.  I’m still in favor of dropping Dewey for a color coded system.  If you have ever visited our library, you would have seen that we use a color system in our Juvenile nonfiction section.  I think it is an easy way to help kids learn where their favorite books are.  It is also a nice tool when you are trying to help several people at once.  You’re looking for books about animals?  Go find the green books and I will be right there to help you.