-See how to see recipes in game.
-Learn about what each job can make.
-Identify the recipe for some items and what they do.
There are a number of recipes that people with certain jobs can make. The easiest way to find out what most of these recipes are is by looking in the recipe book in the game, or looking here. Although most recipes are listed here. We know for a fact that this is not all of them. You may mix the items together in any order and still get the item it says, but you must follow the recipe or else you will get junk.