NaturesAura/src/main/resources/data/naturesaura/recipes/book.json

{
    "type": "minecraft:crafting_shapeless",
    "ingredients": [
        {
            "item": "minecraft:paper"
        },
        {
            "item": "minecraft:paper"
        },
        {
            "item": "minecraft:leather"
        },
        {
            "tag": "minecraft:saplings"
        }
    ],
    "result": {
        "item": "patchouli:guide_book",
        "nbt": {
            "patchouli:book": "naturesaura:book"
        }
    }
}