GameStop has updated their listing for The Witcher III: Wild Hunt Collector’s Edition Official Strategy Guide to reveal an exclusive preorder bonus. Offline and online customers who are reserving the product from the retailer will be getting a world map. It will included inside the packaging of the book. Check out the exclusive bonus below this paragraph. 
While GameStop is offering the exclusive world map, Amazon is selling the same product (minus the preorder bonus) at a cheaper price. You can check out The Witcher III: Wild Hunt Collector’s Edition Guide on Amazon.com with this page.
If you haven’t heard already, the comes with several extras not found in the regular version. This includes the 96-page Witcher Grimoire, which won’t be available anywhere else, that was created by David S. Hodgson. The other extras include a 30-page art section as well as a deluxe foil stamped hardcover. The Witcher III: Wild Hunt Collector’s Edition Guide will only be printed once. So, if you are interested, it is probably a good idea to purchase it as soon as possible.
The official strategy guide for The Witcher III: Wild Hunt is coming out on the same day as the videogame, which has a release date set for the 19th of May in the United States region. The sequel is only coming to the PlayStation 4, Xbox One and PC platforms.