Increase Enchanted Books
Gather supplies
First, you’ll need a few things before you can increase enchantment levels. Below is a list of blocks and tools you’ll need to gather:
How many books do I need?
To increase the level, make sure the books have the same enchantment and enchantment level. Otherwise, you won’t be able to combine them.
Below is a chart on how book combinations work to help you calculate just how many books you’ll need:
How many experience points do I need?
Keep in mind that combining enchanted books cost experience points.
Below is a chart that shows an example of enchantment cost based on the output level for the Efficiency enchantment:
Use the Anvil
After you’ve placed down the anvil, right-click to bring up the anvil GUI. As you can see above, the Repair and Name menu is visible, and you can also see all the books in your inventory.
Combine the Enchanted Books
Place a book in each of the first two slots. When you hover over the slot on the left, you’ll see that the output is a level higher version of the enchanted books inputted.
Once you click on the upgraded variation, your experience points are spent, and you can place the book in your inventory. You can now add the higher-level enchanted book to your items through the anvil!