Advice Needed Wordpress Learning Suggestion

I want to learn wordpress and i want some experienced suggestion where to learn wordpress from. If any one is wordpress developer please suggest me i will be great full to you.
I have plan to learn from:
Lynda
Pluralsight
Udemy

if you have any other suggestion for good i will appreciate it.

Hey buddy, I am a WordPress developer. I learned most of my stuff from Brad Hussey. You can find him on Udemy. I used his Bootstrap to WordPress course. It's 10000% worth it.