The Rules of Magic - According to 50 Fantasy Series

Here's a great chart that was created giving us a breakdown of The Rules of Magic according to around 50 fantasy series. The chart was created by the fine folks over at io9, and I thought many of you might find it interesting, and want to check it out. 

Every fantasy saga has its own rules for magic, and its own explanations for how the magical arts work. Where does magic come from? Who can use magic, and how? Do regular muggles know magic exists? We dug through 50 or so of our favorite fantasy sagas, and compiled a complete list of the rules of magic in each of them.

Go through it and let us know what you think! Are there any inaccuracy's that you see in the chart?