Playing the stock market is, at its core, gambling, and any good gambling book will devote a large portion of itself to explaining the basic principle of money management: Of knowing when to cut your losses and how to prevent yourself from going on a huge tilt.
If you learn more about how confidence scams work you can better avoid pump and dump schemes, smooth talking investment "advice" people, and will be more wise about opportunities too good to be true.
Most of all you need to know how these securities are packaged, what the motivation of the players behind the scenes are, and how the market works internally. Be aware of the sharks in the water and what sorts of investments are being manipulated by things like high-frequency trading.
They say the final lesson is to be prepared to set fire to $10,000 in cash because no matter how good you are as an investor there will come a day where that much or more goes up in smoke based on market movements. If you can handle that, psychologically, you'll be fine. If that thought really freaks you out, better hold on to something more conservative.