Brandon Winn Sanderson (born December 19, 1975) is an American author of high fantasy and science fiction. He is best known for the Cosmere fictional universe, in which most of his fantasy novels, most notably the Mistborn series and The Stormlight Archive, are set. Outside of the Cosmere, he has written several young adult and juvenile series including The Reckoners, the Skyward series, and the Alcatraz series. He is also known for finishing Robert Jordan's high fantasy series The Wheel of Time and has created several graphic novel fantasy series including White Sand and Dark One.