I believe he will find all he needs to get started with trading from the various links you shared, I've also bookmark the ones I've not gone through for future references. I agree with the fact that if he's just getting started, he should focus more on resources that will provide him with basic informations before going in for more advance ones. There's isn't two way to it aside taking your time learn it bit by bit and i have to advice that trading with only what you can spare or loose without feeling much damage is the only way to survive this space