Here is a list of my educational videos on Youtube.
Lenses
48 minutes
https://youtu.be/krJKmn7k4Ow
Soft Light
6.5 minutes
https://youtu.be/e3HwTPoVUow
Controlling Highlights
5.5 minutes
https://youtu.be/rBQG-l5EGxg
Lighting Misconceptions
24 minutes
https://youtu.be/ra1qHCSNHSk
Understanding Camera Lenses
48 minutes
https://youtu.be/wJ3Qa4J1tVA
Intro to Electronic Flash
35 minutes
https://youtu.be/EDuqMrb5Egs
Diffusion Confusion
46 minutes
https://youtu.be/BgengoCKwoc
Let there be dark
39 minutes
https://youtu.be/xwCyqttwTcY
Light Control
34 minutes
https://youtu.be/vYLcANI7tHU
Lenses & Perspective
4 minutes
https://youtu.be/gQM9SQBTEko
Distance in Photography
11.5 minutes
https://youtu.be/J6CgUlZMLs8
Controlling Depth of Field
6 minutes
https://youtu.be/28IcUE4TQow
Dolly vs Zoom
5 minutes
https://youtu.be/W-iL-D1ia4Q
Depth of Field
8 minutes
https://youtu.be/1fXDcEcoG-Q
Learning to Light: Soft Light
8 minutes
https://youtu.be/O_FZ6KCZ4Bg
Feathering the light
4 minutes
https://youtu.be/bq7GABqFHTs
Distance: Lenses & Perspective
4 minutes
https://youtu.be/agj6whNLA98
I also have a book