Welcome to the site by the way. I suggest you look at the Faqs tab and the Spells of Magic category in the Articles tab. Aslo begin by learning the basics of magic. These include but are not limited to..
Casting of the circle/Wardings
Here is a good thread with a lot of info regarding the basics.
I also suggest you begin by looking into works by authors like Raymond Buckland, Scott Cunningham, and Amber K.
Be safe and good luck!