If you get off at Xiaobailou, the exit sign will say "Book Building Exit". If you get off at the "Xiawafang" station, you may have to walk a few more steps. It is recommended to ask the service personnel before choosing the exit (but the service attitude there is very poor). I suggest you ask the specific way after going out, because the book building is blocked by many buildings, and it is difficult to tell the direction. Ask and leave.