What is a good resource for truly beginner investing?

Whenever I try to find resources for learning to invest, they are terrible. I either get hit with a million acronyms with vague explanations, or promos idea of turning 100 bucks into millions within months. I am an average guy who makes average money and I want to do some basic investing. I know stuff like CDs but nothing "higher risk" like with fidelity. I have made an account but just don't know how to start. Are ther videos that aren't trying to sell something or "make me a millionaire"? Books?