The "Minecraft: Blockopedia Hardcover" is a reference book authored by Alex Wiltshire and published by Mojang. It is a comprehensive guide that explores the various blocks found within the popular video game, Minecraft. With detailed information and illustrations, this book serves as a valuable resource for players looking to learn more about the game's building materials and their uses. The hardcover format ensures durability and longevity, making it a must-have for any Minecraft enthusiast seeking to expand their knowledge of the game.