Place an anvil on the ground
Put the item you want to enchant in the first slot
Put the enchanted book in the second slot
Take the enchanted item from the result slot
Use an enchanting table to get enchanted books from fishing, loot, or trading
Use a grindstone to remove unwanted enchantments from items, not from books
Combine two enchanted books in an anvil to merge compatible enchantments
Apply the book to the correct item type, such as armor, tools, weapons, or bows
Make sure you have enough experience levels to complete the anvil operation
Repair or combine items with enchanted books in an anvil when needed