Liu Xiaoyan's class can be watched on some video platforms, such as a video website. You can see some of Mr. Liu Xiaoyan's courses in some video recording classes or other types of videos. Then the above courses are generally free.

However, the course is generally intercepted and put up, or put up in other forms, so it will not be a complete course. Then, if you want to see the complete paid courses, you can go to Qi Hang Education official website to buy the relevant courses of Mr. Liu Xiaoyan, because Mr. Liu Xiaoyan is a teacher of Qi Hang Education, and all his courses will be sold on this platform.

Then, if you are interested, you can go to this official website to search.