Bitcoin faced extreme headwinds in March when Alphabet's Google (ticker: GOOG, GOOGL) joined Facebook (FB) in banning ads for cryptocurrencies, which lowered liquidity in the market. In an abrupt reversal, Facebook said on June 26 that it would allow some ads for cryptocurrencies, but continues its ban against initial coin offerings and binary options.
Crypto exchanges no longer serve a small community of early adopters, but an entire market of crypto enthusiasts that just can’t get the level of service they are looking for when trying to exchange cryptocurrencies. Introduced by the same people who brought AAATrade to the world of CFDs, CryptoExchange is a relatively young cryptocurrency exchange that has gained popularity among crypto enthusiasts these days. The platform aims to resolve the hassle associated with the slow approval process and poor customer support that characterizes traditional exchanges.
No coin will go up forever, even Bitcoin has very good days, and then some really rough ones. The crypto space is ever-changing and evolving, with new opportunities coming up every day. If you believe in a coin, holding it for long-term returns is a good approach, but if you are looking to make money by trading, you cannot have emotional attachments with any coin.
To perform cryptocurrency arbitrage, you need to find an opportunity where you can buy a cryptocurrency for less than you can sell it on another exchange (minus the fees and commission). Once you’ve found one, all you need to do is simultaneously buy Bitcoin on the lower-priced exchange and sell on the higher-priced one. It’s easy to make hundreds or even thousands of dollars in just a few seconds if you have enough funds.
Closing a trade in profit. It is important to take your winnings out of a trade. Cryptocurrencies move faster downwards than they do upwards, and you don’t want to be late cashing out of a trade. You also don’t want to be too early and miss out on extra profits. There are a lot of techniques to help you make this decision that are out of the scope of this beginner’s guide.

Leverage is money that a broker loans you. Unless you’re a professional trader, you should stay away from leverage until you’ve learned everything you can learn about making trades with your own money. While leverage can help you make greater profits with short cryptocurrency movements, it can also amplify your losses when the trade takes a wrong turn.
The top of the order book will show you the lowest price at which someone is willing to sell a cryptocurrency, and the highest price at which someone is willing to buy it — but that doesn’t mean you can buy or sell the amount you want at that price. In fact, the amounts of a cryptocurrency that people are offering to buy or sell at the top of the order book are often quite small, which means that, if you’re trying to buy or sell a larger amount, you’ll have to go deeper into the order book: finding a counterparty who’s offering a price that isn’t as good as the “market price.”
Lots of traders use bots (you might want to as well if you have the chops). To the next point, lots of traders use trading bots. Some are white hat; some will try to get you to make bad trades. Keep an eye out for bots. If you are using a bot, be careful, there are bots designed to exploit poorly programmed bots. In general, if you don’t have a solid grasp of TA and crypto trading, skip the bot. They are only as useful as the strategies they run.
Let’s say on January 2, 2017, you owned $1,000 and exchanged it into euros (EUR) with another market trader at a rate of EUR€0.9565, leaving you with EUR€956.50. Then, on November 24, 2017, the value of the US dollar had fallen from EUR€0.9565 to EUR€0.8380, so you decide to exchange your euros back into US dollars. After finding someone willing to sell their US dollars for your euros, you carry out the exchange at the new price. Your EUR€956.50 is now worth $1,141.40, leaving you with a profit of a little more than 14%.

EDIT: #10 Bonus (Suggested by @kerstenwirth ) — always check the ticker symbol. Ticker symbols are not universal, and may vary from exchange to exchange in rare cases. Those cases, though, can come back to bite you. For example, Bitcoin Cash trades on some exchanges as BCH, while it trades on others as BCC. BCC is also the ticker symbol for BitConnect, which was recently outted as a Ponzi Scheme. If you bought BCC under the impression was Bitcoin Cash, you would’ve lost a lot of money.