Just for the record, while having training material can be good, the calls we got from Mark were not about that kind of training. They were mostly about understanding the tech underlying things.

I’ve presented some of them here. Like how you can push down a character with your finger or a pencil eraser and get the expected result, but if you lightly rest your finger on a character while pushing down on a different character on the same keycap, the result will be the one your finger is resting on rather than where the most pressure is because it is sensing your touch.

Most of my typing training came from the videos we can all see.