Enchanted Book
minecraft:enchanted_book
Obtained from Librarian villagers. Doesn't stack, classed as a rare item.
How to get it
No direct recipe — it's made using a Book:
Crafting (shapeless) 
→ 
Book
💰 Sold by villagers
Librarian · Novice 
?+ 1 → 1 Enchanted Book enchanted (price varies)
?+ 1 1 Enchanted Book enchanted (price varies) Librarian · Apprentice ?+ 1 → 1 Enchanted Book enchanted (price varies) +5 XP
?+ 1 1 Enchanted Book enchanted (price varies) +5 XPLibrarian · Journeyman ?+ 1 → 1 Enchanted Book enchanted (price varies) +10 XP
?+ 1 1 Enchanted Book enchanted (price varies) +10 XPLibrarian · Expert ?+ 1 → 1 Enchanted Book enchanted (price varies) +15 XP
?+ 1 1 Enchanted Book enchanted (price varies) +15 XP