I'm Writing a UE4 Blueprints Book, But what would you like to see in it?

Well, my personal strategy is: Blueprints everywhere :o
For example, all my game logic is based on Blueprints, but I need to check data on Steam. There’s no Blueprints for Steam’s API.
So, after a battle to get Steam working on my project I began to create custom Blueprints exposing the Steam API to let me than create logic graphs around what is going on with player’s Steam acc.
But I am doing that on a blind, there are no docs about it and a book to cover the details making sure I’m not doing anything stupid would be great.
The thing is, I don’t even know C++. I’m doing work based on my experience with C#, Python, etc.