Comment by antegamisou

Suddenly HN has decided that they're not visual learners anymore. Too bad, Keenan Crane from CMU has the best video course series on Discrete Differential Geometry:

https://www.youtube.com/playlist?list=PL9_jI1bdZmz0hIrNCMQW1...

https://www.cs.cmu.edu/~kmcrane/Projects/DDG