Craft or find an Enchanting Table
Craft Bookshelves and place them around the Enchanting Table
Collect Lapis Lazuli
Place a Book in the Enchanting Table
Add Lapis Lazuli to the Enchanting Table
Choose an enchantment option
Take the enchanted book from the result slot
Use an Anvil to combine the enchanted book with a tool, weapon, or armor
Use an Anvil to combine two books into one book with combined enchantments
Use an Anvil to repair or upgrade items with enchanted books