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Investing money 101
The way to invest money in a company is to buy its shares, or derivatives of its shares. However, it seems you're way in over your head. Don't buy what you don't understand.  There is plenty of material to teach you about stock investing on the internet. However, a book may be the fastest way to learn what you need to know. And yes, there is a "for dummies" book about that: Stock Investing ForDummies. I just found it by Googling, I'm sure you can find even more interesting books out there. (Note, the link is to the "cheat sheet" in the back of the book. The full book is worth reading.)