With cryptocurrencies like Bitcoin on the rise, many wonder if these digital currencies could be the exchange medium of the future, but what are cryptocurrencies and the blockchain technology that facilitates them? Blockchain technology involves linking a series of digital records through cryptography without the use of a centralized server, which when applied to asset exchange creates cryptocurrencies. However, there are various concerns about the ability to regulate cryptocurrencies, their stability, and whether they can be applied on a global scale. This volume enables readers to better understand these new technologies and the controversies surrounding them.