Cryptocurrencies have taken the world by storm, as bitcoin continues to hit record highs against the dollar. Digital currencies popularity is already threatening to usurp the dollar and the Euro, as the base currency for transactions across the globe. Cryptocurrencies growing in popularity to the extent of replacing monetary reserves would make them dominant currencies. Their value should also skyrocket thus presenting unique investment opportunities for investors. Below is a guide to all you need to know about cryptocurrencies.