{
  "variants": {
    "facing=east": [
      {
        "model": "minecraft:block/book_box_a",
        "y": 90
      },
      {
        "model": "minecraft:block/book_box_b",
        "y": 90
      },
      {
        "model": "minecraft:block/book_box_c",
        "y": 90
      },
      {
        "model": "minecraft:block/book_box_d",
        "y": 90
      }
    ],
    "facing=north": [
      {
        "model": "minecraft:block/book_box_a"
      },
      {
        "model": "minecraft:block/book_box_b"
      },
      {
        "model": "minecraft:block/book_box_c"
      },
      {
        "model": "minecraft:block/book_box_d"
      }
    ],
    "facing=south": [
      {
        "model": "minecraft:block/book_box_a",
        "y": 180
      },
      {
        "model": "minecraft:block/book_box_b",
        "y": 180
      },
      {
        "model": "minecraft:block/book_box_c",
        "y": 180
      },
      {
        "model": "minecraft:block/book_box_d",
        "y": 180
      }
    ],
    "facing=west": [
      {
        "model": "minecraft:block/book_box_a",
        "y": 270
      },
      {
        "model": "minecraft:block/book_box_b",
        "y": 270
      },
      {
        "model": "minecraft:block/book_box_c",
        "y": 270
      },
      {
        "model": "minecraft:block/book_box_d",
        "y": 270
      }
    ]
  }
}