The Making of Assassin's Creed: 15th Anniversary Edition examines the last 15 years of Ubisoft's action series. The $50 standard hardcover edition features 240 pages of art from the series' many games, as well as interviews with developers and articles covering Assassin's Creed's history.
The $100 Deluxe edition, shown above, includes the book with a special cover, a slipcover, and two lithograph prints. You can preorder both at Amazon.
Neither of the editions are discounted at this time, but Amazon often marks down books prior to release. If you order now, you'll get the lowest price offered up until release thanks to Amazon's preorder price guarantee.
By the time this book releases, it'll be closer to 16 years since the Assassin's Creed launched. Ubisoft actually announced this book last year right around the 15-year mark.