Prestige classes area mix of two classes in the game...such as Wizard and Knight.

Prestiges are harder to get because you have to master both classes from the start of both of them.

A class chain would look like this:

Novice -> Warrior -> Knight -> Mage -> Wizard -> Geomancer

When in each of the two first tier classes there, you start over at level one again. for job level. Your Base level will stay the same through out the whole chain, untill you get to the final stage, then you completely start over.

The Prestiges are still being developed right now, so I will post them when they are done.