Prashantji's lessons on YouTube
Prashantji Iyengar, shares with all the students of yoga short (30minutes) lessons on yoga on YouTube. Those lessons are called "Online Education in the tradition of Yogacharya BKS Iyengar".
I encourage you to take those lessons (several times if you can). In case you have questions, don't worry it's part of the learning process... but if you're really curious about yoga you can discover a lot and learn a lot.
Lesson 1 : https://youtu.be/d5XKJ6ZnPPQ
Lesson 2 : https://youtu.be/Gfti3nS8hrE
More lessons to come...