Think of the stock market as a massive, global marketplace. But instead of selling fruits and vegetables, this market deals in ownership of companies. When a company wants to grow, it can sell tiny pieces of itself to the public. These pieces are called stocks.

By buying a stock, you become a shareholder, which means you own a small slice of that company. The company gets the money it needs to expand, innovate, or hire more people. In return, you get the chance to share in the company's future profits. If the company does well, the value of your stock may go up. If it struggles, the value may go down.

The main purpose of the stock market is to connect companies that need capital with investors who have capital. It's a system designed to fuel economic growth.

Stocks are bought and sold on stock exchanges. These are organized markets where buyers and sellers come together to trade shares at agreed-upon prices. While the image of a chaotic trading floor is classic, most trading today happens electronically.

Two of the most famous exchanges in the world are the New York Stock Exchange (NYSE) and the Nasdaq.

The NYSE is known for its physical trading floor, where human brokers facilitate trades in an auction-style market. Nasdaq, on the other hand, was the world's first electronic stock market. It has no central trading floor; all trades are done through a vast computer network. Many of the world's biggest technology companies, like Apple and Amazon, are listed on Nasdaq.

When you hear about stocks, people are usually talking about one of two main types: common stock and preferred stock. They both represent ownership in a company, but they come with different rights and benefits.

Preferred stock typically doesn't come with voting rights. However, it has a key advantage: dividends. Preferred shareholders usually receive fixed dividend payments before common shareholders do. If a company goes out of business and sells its assets, preferred shareholders also get paid back before common shareholders.

Here’s a simple breakdown:

So how do you actually buy or sell a stock? You can't just call up a company and ask to buy a share. You need to go through a middleman. This is where brokers come in.

A stockbroker is a professional licensed to buy and sell stocks on your behalf. In the past, you'd have to call your broker on the phone to place an order. Today, most people use online trading platforms.

These platforms, offered by brokerage firms like Fidelity, Charles Schwab, or Robinhood, act as your digital broker. You simply create an account, deposit money, and then you can place orders to buy or sell stocks directly from your computer or phone. When you place a buy order, the platform sends it to the exchange, which matches you with someone who is looking to sell the same stock.

Now that you know the basics, let's see what you've learned.

Understanding these core concepts is the first step. They are the foundation upon which all investing knowledge is built.