DEWEY DECIMAL SYSTEM AND HOW IT WORKS

The dewey decimal system works like this there is a call number and it has two parts the DDS and the cutter number. The DDS comes first and then the cutter number to make a unique number.

Why this is because some books may have the same DDS number so they stick a letter on the end of the DDs which is the cutter #

There is 10 main categories for the dewey decimal system.

In these categories there are even more sub-categories

So the more numbers the more specific it gets

The cutter # for a book has the authors 1st letter of their last name before the series of random numbers and the first letter of the books title.

EXAMPLES

Like the harry potter book chamber of secrets the DDC # would be 823.914.But all of the harry potter books have the same DDC#. So they would add the cutter # which would be R797c.