The lecture was very calm and step-by-step from the basics, so I understood everything. The terms were unfamiliar and I had a hard time understanding the concepts, but I was able to solidify the basics of Facebook advertising through this lecture, which was great. The instructor's voice is nice, and the background is a little dark, so I can concentrate better. Thank you for the great lecture. It's the best cost-effective lecture. I highly recommend it~!!! ^___^