Here's best video tutorial for WordPress Beginners from LevelUpTuts, it's very basic, easy to understand step-by-step tutorial on WordPress. For more tutorial you can visit his website.

Customizing WordPress #1 - How To Create A Child Theme

Customizing WordPress #2 - Using Chrome Developers Tools

Customizing WordPress #3 - Understanding Template Files

Customizing WordPress #4 - Creating Page Templates

Customizing WordPress #5 - The Loop Basics

Customizing WordPress #6 - Introduction to the functions template

Customizing WordPress #7 - Adding A JavaScript File Part 1

Customizing WordPress #8 - Adding A JavaScript File Part 2

Customizing WordPress #9 - Adding New Widget Areas

Customizing WordPress #10 - Adding A Widget Area To Your Template

Customizing WordPress #11 - Adding and Displaying Menu Locations

Customizing WordPress #12 - Starter Themes - Intro To Underscores

Customizing WordPress #13 - Underscores Starter Theme Part 2

Customizing WordPress #14 - Intro To Bones Starter Theme

Customizing WordPress #15 - Bones Up and Running