If you want to have a better understanding of Mage: The Ascension, you can download an electronic introductory booklet: http://rpg.drivethrustuff.com/product_info.php?products_id=58433
For a more in-depth treatment, you can buy the electronic rulebook: http://rpg.drivethrustuff.com/product_info.php?cPath=1_11&products_id=199&it=1
If you want to have a better understanding of Mage: The Ascension, you can download an electronic introductory booklet: http://rpg.drivethrustuff.com/product_info.php?products_id=58433
For a more in-depth treatment, you can buy the electronic rulebook: http://rpg.drivethrustuff.com/product_info.php?cPath=1_11&products_id=199&it=1