Mario is getting the Zelda treatment this year with his own hardcover encyclopedia, and preorders on Amazon are currently marked down to $24, from the MSRP of $40. The limited edition, which comes with an item block slipcase and randomized cover, is also on sale for $48, down from its launch price of $80.
Whichever one you choose, it doesn’t come out until October, but if you preorder now, you’ll automatically get the best price Amazon lists between the moment you order and the day it’s released.