What is your opinion on the 'bitcoin and cryptocurrency' coursera course? Any other recommended intro text/courses for cryptocurrencies/crypto?

I signed up for the coursera course in September (http://bit.ly/2btrecG) and subsequently bought the book used in the course.Looks like this course has been offered in the past. Has anyone taken it? If so, I'm interested in hearing your opinions.I'm looking for a course that will introduce me to cryptography and cryptocurrency. Are there any others you guys would recommend?Also, are these the series of videos from the course? https://www.youtube.com/channel/UCNcSSleedtfyDuhBvOQzFzQ/videos via /r/Bitcoin http://bit.ly/2bs6kxf