The Forms are how magic is divided up. The number of Forms has grown and shrunk as humanoids have learned more about magic, but modern research has indicated that there are only eleven such areas of magical study, each detailed below.
The Form of Air.
The Form of Earth
The Form of Fire
The Form of Flora & Fauna
The Form of Health
The Form of Illusion
The Form of Lightning
The Form of Mind
The Form of Protection
The Form of Time
The Form of Water