The Legend of Zelda has a long, complex history that spans several decades and dozens of games. Keeping up with all its nuances isn’t easy--but The Legend of Zelda Encyclopedia can help. The expansive hardcover book is filled with 320 pages of commentary, artwork, and other interesting facts about the series. And right now, you can score it as part of a promotion that bundles it together with The Breath of the Wild: Creating a Champion Artbook for just $42, down from its usual $67.

In order to claim the discount, simply add both books to your Amazon shopping cart. You should automatically see the price cut applied during checkout. Depending on your location, your order could arrive as early as tomorrow.

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While the Encyclopedia is the main draw of this deal, the Creating a Champion art book is no slouch. It features nearly 50 pages of sketches and other illustrations from Takumi Wada, 296 pages of BOTW artwork in general, and tons of commentary from Eiji Aonuma, Hidemaro Fujibayashi, and other key members of the team. All told, it clocks in at a staggering 424 pages--each one dedicated solely to Breath of the Wild.