Minecraft wiki entry for Armor_farming, associated text: One way to get the enchanted books you need is to trade with librarian villagers. To do this you will need to gather a very large amount of villagers by constructing a villager breeder, and you will have to craft 12-16 lectern blocks (Those are the profession blocks for librarian villagers). Move the villages into an 1x1x2 space and place a lectern in front of them to convert them to librarians. If they do not have the enchanted book trade you like, you can break and re-place the lectern block over and over again to get the enchanted books you want. Next you will have to gather emeralds to trade with the villagers. Refer to the 'Getting Emeralds' section above for ways to get lots of emeralds.