Hi-
I am working on putting together a Blues harmonica Cheatsheet. It basically is a combination of helpful info, and what I wish I know when beginning blues.
The Cheatsheet assumes that you know the basics - bending, playing single notes, and reading tabs. I am not sure what else to add, but I think more scales/ positions would be helpful.
Let me know what you think/ if you have any more ideas, please leave them below.