I hope you find my tutorials helpful in your journey of learning more about Factorio.

Throughout all my tutorials, I have covered nearly all subjects in the game aside from Circuit Networks, and Trains because those are still a bit of a weak point for me and I'm constantly learning new things about them, so I don't believe I'm qualified quite yet to make tutorials on them. If you have any ideas/suggestions for aspects of the game that could still use some guides/tutorials, please don't hesitate to let me know.

Hope you enjoy!
VERSION 0.15 TUTORIALS:
Nuclear Power Concepts & Features
UPDATED/NEW TUTORIALS:
Important Build & Production Ratios
Smelting and Furnace Ratios
Oil Production Ratios
10 Tricks/Features You May Not Know About
Benefits of Speed/Productivity Modules & Beacons
5 Ways To Increase Game Performance & Reduce Lag
All Circuit Ratios
Production / Main Bus
Logistics Robot Based Production
Building Thought Process
The Debug Menu & Statistics
8 More Tricks/Features You May Not Know About
So without further ado, here is episode 1: https://youtu.be/bahM1UB7C08 - Hotkey Shortcuts & Tricks
Episode 2: https://youtu.be/V9rAKXV-xjI - The Early Game & Steam Engine Setups
Episode 3: https://youtu.be/-F7bmz2uMGw - Expandable Smelting Setups
Episode 4: https://youtu.be/K-D0gaiHQYY - Red & Green Science
Episode 5: https://youtu.be/SEOedyrFQ_g - Installing Mods
Episode 6: https://youtu.be/qrcTeCse42A - Early Game Offensive/Combat Tactics
Episode 7: https://youtu.be/0CvXB1SQY6c - Setting Up The Oil Industry
Episode 8: https://youtu.be/q3rAzVcnjGs - Advanced Circuit Setups and Tips
Episode 9: https://youtu.be/I_H0hR7B5_w - Smarter Inserts and Blue Science Pack Setup
Episode 10: https://youtu.be/ZI3eogMI15M - Mid Game Combat & and Biter Base Clearing
Episode 11: https://youtu.be/cimdFlB583I - The Logistics System
Episode 12: https://youtu.be/6gyuon58ysA - Modules and Beacons
Episode 13: https://youtu.be/cWG3LqIjqsE - 6 Quick Tips - Copy/Paste Assembler recipes, Filter toolbelt/Cargo Wagon, Place Blueprint over trees, and more.
Episode 14: https://youtu.be/PqXlEX_97qE - Beacons
Episode 15: https://youtu.be/EmHyJgqRk4c - Rail Planner & Train Wait Conditions
Episode 16: https://youtu.be/5iRqTPeboIE - Blueprint Book & Exporting/Importing Blueprints
I'll be updating this post everytime a new episode comes out. But feel to bookmark the playlist or whatever to stay updated as well.

I hope some of this information is helpful, and I really look forward to any feedback you may have! Also I would love suggestions for what you would like the next video to cover!