The Dewey Decimal System is a method of organizing books by grouping similar subjects into 10 main classes and assigning each a number. Each of the 10 main classes is then subdivided further. It's not always easy to pinpoint where to look just by the names of the 10 main divisions. For instance, would you think to look for a book about your new puppy (636.7) or kitten (636.8) under "TECHNOLOGY"?! Here's a breakdown of some of the things you might find in each category:
