Cryptocurrencies and digital coins have evolved quite rapidly and have become a tool with significant impacts on economic decisions in a short time. This book covers deep theoretical and empirical researches from different perspectives upon cryptocurrencies by successful and expert researchers in their fields. It contains theoretical and empirical analyses on cryptocurrency. The contributors discuss the historical background of money and cryptocurrency, its future prospects and its effects in the financial system. Furthermore, they examine regulations on crypto coins, the effects of central banks on monetary policies, business control processes of Blockchain technologies, continuous control, taxation and the empirical applications about it.