Where can I watch He's teaching video?

He's teaching video is watched in He official website. In official website, click the "Course" button on the homepage of the website. On the course page, you can see a list of all courses, and you can choose the corresponding course according to your own needs. After entering the course, you can see the detailed introduction of the course and the course catalogue. Click the "Start Learning" button to watch all the videos of this course.