Bogleheads Guide to Investing - First Edition PDF
Book Summary on Bogleheads Wiki
This is somewhat of a speed run of the book.
The Bogleheads philosophy is basically to buy everything with a 2 or 3 fund portfolio.
- Total Stock Fund
- Total Bond Fund
- Total International Fund
The linked documents will explain those in more detail, but the concept is to buy everything so you always have bought the biggest winners, not to bet on a handful that will all lose or win, but at bigger expense to you.
They'll tell you how much to buy of each and what type of account to keep it in to max tax effectiveness.
It's not complicated once you read the source, and anyone should be able to understand it, it's not written to be cryptic or to sell you something. You can put your money anywhere you choose and it works the same.
I've followed it for about 15 years or so and have been very happy. There's no checking on stock news or any of that BS, you just develop a plan you're comfortable with, and then stick to it. The more hands off you are, the better honestly.