This is a course I'm taking right now. It is very practical and includes lots of informative videos created by OTIS staff, where drawing techniques, principles of drawing figures, portraits, objects and still lifes are very clearly explained. I love the variety of assignments that help me learn to actually see things, and not just draw what I THINK I see. The instructor is not only an expert, but he is also a very friendly person who comments on students' work and offers suggestions. In my view, it's an excellent course for anyone (not just for high school students, as there are also study groups for art teachers and "curious learners" of any age).