Featuring Tracy Rich and Ganga White. Total run time is 70 minutes, but the actual practice session is about an hour. This is a very gentle practice, not strenuous at all; it does not get the heart rate up, so it is a good DVD to follow on those days when you are just not feeling very strong. As far as the skill level range, it is fine for beginners, but it may not be challenging enough for more advanced practitioners - I like it just fine for "lazy" days, but on days when I'm feeling strong and motivated, this is NOT my go-to DVD. The motivational level is fine (this is a yoga practice, so you really can't expect a lot of enthusiasm), and the presenter demonstrates the poses in good form. The instructions are clear and easy to follow. What I do not like is that they show you the more advanced options out of order. The man is narrating (giving instruction), and the woman is demonstrating the postures. Take pigeon pose, for example - a modified version is demonstrated on the right side. When they do the left side, they offer you a more advanced expression of the pose. If you're going to give those options show me both FIRST, so I can choose which version suits me best and do that on BOTH sides of my body. After practicing along with the DVD a few times, it's easy to remember which poses have the advanced versions (and how to do them).