When thinking about a stock exchange it is worth remembering that it is a capital market. The primary purpose of a capital market is to enable businesses to raise money to provide working capital to fund expansion and growth. In exchange for this money, the companies issue equity in the form of stock, creating stockholders. Each stockholder ownes a piece of the active business relative to the amount of money they invested.
When you have done your research and are now a better informed investor, it’s time to buy the cryptocurrency you want to invest into. This might be a bumpy road, depending on what you want to invest into, because not all coins are listed on all exchanges. Each project will usually have a page explaining where the cryptocurrency can be exchanged. You can buy cryptocurrency either via instant-access exchanges or full exchanges. Each have their pros & cons:
Equity investments historically have enjoyed a return significantly above other types investments while also proving easy liquidity, total visibility, and active regulation to ensure a level playing field for all. Investing in the stock market is a great opportunity to build large asset value for those who are willing to be consistent savers, make the necessary investment in time and energy to gain experience, appropriately manage their risk, and are patient, allowing the magic of compounding to work for them. The younger you begin your investing avocation, the greater the final results – just remember to walk before you begin to run.

A stock's market capitalization (cap) is the sum of the total shares outstanding multiplied by price. For example, if a company has 1 million outstanding shares priced at $50, its market cap would be $50 million. It has more meaning than the share price because it allows you to evaluate a company in the context of similar-sized companies in its industry. A small-cap company with a capitalization of $500 million shouldn't be compared to a large-cap company worth more than $10 billion. Here are how companies are generally grouped:

Should the company management and majority owners choose, they can pay one or more dividends per year to stockholders. The money for these dividends will typically come from profits earned within the business. In most countries, these dividends are subject to income tax payable by the receiver. Often there is a withholding tax taken at source to ensure that non-resident shareholders pay as well. 
Now, imagine that you decide to buy the stocks of those five companies with your $1,000. To do this, you will incur $50 in trading costs—assuming the fee is $10—which is equivalent to 5% of your $1,000. If you were to fully invest the $1,000, your account would be reduced to $950 after trading costs. This represents a 5% loss before your investments even have a chance to earn.
When thinking about the mindset of investors, The Great Crash 1929 by J.K.Galbraith (reviewed here) should also be required reading. Typically, any sustained fall in prices - known as a bear market - is very destructive to wealth. However, as Galbraith explains wonderfully, each bear market is unique and is a reflection of the bull market that came before it. The book explains a great deal about the feedback loops that can exist when prices rise and fall as more people are either sucked into or forced out of holdings. It is the reference work about a very important slice of Wall Street history.
Though it is called a stock market or equity market and is primarily known for trading stocks/equities, other financial securities - like exchange traded funds (ETF), corporate bonds and derivatives based on stocks, commodities, currencies, and bonds - are also traded in the stock markets. (For related reading, see "What's the Difference Between the Equity Market and the Stock Market?")

Every online brokerage firm on the list above has its strengths and weaknesses. It might be ideal for one customer and at the same time might not work for someone else. Before opening an account, there are a lot of parameters to consider besides commissions, well-known brokerage name, and pretty website. Some of the most important of these parameters are surcharges and fees; friendliness to client's knowledge level (perhaps one is a beginner? or needs a professional-level trading platform?); availability of investment products a client wants to buy (for example forex, futures, or NTF mutual funds) as well as availability of online community, virtual trading, and discounts. We suggest to investors to take a time to read brokerage reviews, and see for themselves if a particular firm is the right fit. 

Traditional full-service stockbrokers do more than assist with the buying and selling of stocks or bonds. They often offer a wide array of services and products, including financial and retirement planning, investing and tax advice and regular portfolio updates. But they can charge substantial fees and transaction costs that can erode long-term investment gains.

The most feared words on any stock exchange are margin call. A margin call is made when a position is losing money and more money is required by the broker to keep the trade open. If and when a stock ticker moves quickly, there can be people whose borrowing levels literally bankrupt them as things get worse ... fast. Volatility can be either a blessing or a curse, but if you have too much leverage, it can break a trader.
Portfolio managers are professionals who invest portfolios, or collections of securities, for clients. These managers get recommendations from analysts and make the buy or sell decisions for the portfolio. Mutual fund companies, hedge funds, and pension plans use portfolio managers to make decisions and set the investment strategies for the money they hold.
The stock exchange shoulders the responsibility of ensuring price transparency, liquidity, price discovery and fair dealings in such trading activities. As almost all major stock markets across the globe now operate electronically, the exchange maintains trading systems that efficiently manage the buy and sell orders from various market participants. They perform the price matching function to facilitate trade execution at a price fair to both buyers and sellers.

Secondly, this is a very vast topic and many people now trade and deal with cryptocurrency as their main day job. Startups and empires are built on it, so please understand this is a beginner’s guide and not the ultimate guide to the galaxy of cryptocurrencies. I will specifically limit myself to cryptocurrencies and will not cover ICOs (Initial Coin Offerings) as these are to me more investments into products or companies yet to be developed. This article will also not cover the relevancy or not of cryptocurrencies, it will not cover the famous Tulip Bubble, or any kind of philosophical concepts.
What would make me sell: Sometimes there are good reasons to split up. For this part of your journal, compose an investing prenup that spells out what would drive you to sell the stock. We’re not talking about stock price movement, especially not short term, but fundamental changes to the business that affect its ability to grow over the long term. Some examples: The company loses a major customer, the CEO’s successor starts taking the business in a different direction, a major viable competitor emerges, or your investing thesis doesn’t pan out after a reasonable period of time.