Crafting using Dragonskin, Obsidian, Dragonskin, Dragonskin, Ruined Book, Dragonskin, Dragonskin, Obsidian and Dragonskin, arranged in the pattern shown. Produces Dragonskin Spell Book.
Crafting 
Dragonskin Spell Book guaranteed
irons_spellbooks:dragonskin_spell_bookirons_spellbooksirons_spellbookscurios:items/spellbook
Recipe JSON (1):
{
"recipe_type": "minecraft:crafting_shaped",
"pattern": [
"DOD",
"DRD",
"DOD"
],
"ingredients": {
"D": {
"item": "irons_spellbooks:dragonskin"
},
"O": {
"item": "minecraft:obsidian"
},
"R": {
"item": "irons_spellbooks:ruined_book"
}
},
"conditions": [],
"sequence": null,
"group_name": null,
"experience": null,
"cooking_time": null
}