Free Videos from Improving Visualforce Performance Online Course

I just found out I can embed videos from my course for Lynda.com about Improving Visualforce Performance. So, I thought I would do a post and embed the free videos for that course.
https://www.lynda.com/player/embed/428848?fs=3&w=560&h=315&ps=paused&utm_medium=referral&utm_source=embed+video&utm_campaign=ldc-website&utm_content=vid-428848

https://www.lynda.com/player/embed/428871?fs=3&w=560&h=315&ps=paused&utm_medium=referral&utm_source=embed+video&utm_campaign=ldc-website&utm_content=vid-428871