Certainly, seeing the logic or concept in action seems less boring and easier to understand than reading a book! I'll try the in-depth version too~!! The lecture is really good. ps) Hanoi Tower Tips 1) Think of the largest disk as an image of the remaining disks being contained in a large ball or pocket 2) Think of the Hanoi function name as Move I got a little lost in the Hanoi Tower lecture, so I'll leave this here.