The Twilight Saga: The Official Illustrated Guide (previously titled The Official Guide) is a spin-off encyclopedic reference book for the Twilight Saga book series, written by Stephenie Meyer and was released on April 12, 2011. The Guide includes exclusive new material about the world Meyer created in Twilight, New Moon, Eclipse, Breaking Dawn and The Short Second Life of Bree Tanner, and nearly a hundred full-color illustrations by illustrator Young Kim, who previously illustrated Meyer's #1 New York Times Best Seller Twilight: The Graphic Novel, and several other artists. Source: Wikipedia (en)