I like where this series is headed, I will certainly be following it.

A few suggestions on how to improve the consumption of these videos.

1) Break down the video into smaller bite sized chunks to provide for natural breaks. Unlike movies where it's more a passive viewing experience, educational videos, especially ones where you're expected to follow along, require a lot more mental engagement. This makes it difficult to sit through a 50 minute video in one sitting.

3) Use a basic video editor (e.g ScreenFlow) to zoom into the sections you're working on. It's difficult to follow what you're doing when viewing the entire screen, text is tiny and difficult to read. Also forcing me to go into full screen mode to view the text, doesn't help when I want to follow along.

Overall, I love it. Keep up the good work.