Where does World of Warcraft learn vocational skills?

Now upgrade the automatic learning skills ~ 10, you can add talents, learn double talents at level 30 ~ buy horses at level 20! Press p directly to build the skills you have learned! If you want to experience vocational skills, you can go to the vocational skills trainers in major cities to get tasks! You had to do that task yourself before, otherwise those who are incompetent will be useless now!