The official guide has a release date of April 12, 2011 and can be pre-ordered from Amazon here. Want to know what the official guide will include:
This must-have hardcover edition--the only official guide--is the definitive encyclopedic reference to the Twilight Saga and provides readers with everything they need to further explore the
unforgettable world Stephenie Meyer created in Twilight, New Moon, Eclipse, and Breaking Dawn.
With exclusive new material, character profiles, genealogical charts,
maps, extensive cross-references, and much more, this comprehensive
handbook is essential for every Twilight Saga fan.