Like many, I discovered Brandon Sanderson because he is completing Robert Jordan's Wheel of Time Series for TOR books. I've really enjoyed his style as he wraps up the WoT, so I looked into his original novels. The first I read by Sanderson was The Way of Kings, which I believe is his latest novel. It was an excellent read, so I went looking for more by him and picked up all three of the Mistborn Trilogy.
The Mistborn Trilogy turned out to be one of the most fascinating and Unique stories I have read in a long time. It is fantasy, set in an original world, which is nothing new. The magic system is unique. But what held my attention so well was Sanderson's open philosophical religious and politcal debate throughout the series, about how we perceive right and wrong, and good and evil, and about the consequences of our actions, even when we think we are doing the right thing.
I highly recommend the series to anyone that enjoys reading.