A guild is an education system by which you learn in a hands on fashion. This system works best with artisan jobs, but is also used for merchant jobs. It consists of a master and an apprentice. After a few years working/learning with his master, some crafts sent their apprentices on jouneymanship for a year and a day, to learn skills from other masters. The journeyman carries with him a letter from his guildmaster to identify him. During this period the journeyman may not visit or even come near his hometown. Whenever the master thinks the apprentice is ready for it he is required to make a "masterpiece", by which he is judged. This judging is done by his own master as well as the other masters of that guild. When the apprentice passes this test, he may call himself a master of the craft. He also earned the right to marry and set up his own business.