It's of a terrible quality in my opinion, but at some member's requests I'm gonna be resurrecting select parts of the old video series here as a resource. We don't have much raw introductory material at the moment, and so maybe this will be useful to some members as a primer to the general concepts:
@auburn, how old are these videos? I find them easier to follow and understand as they show the different signals as they happen. Do you have more for the rest of the types? I know some assessments have changed and revised, like the example of Jane Goodall is typed here as NiFe even though her type has been updated to NiTe-Fi, but I think they are still informative in showing the mix of details in signal typing.