Gianni Nicolini is Full Professor of Finance, in the Department of Management and Law, Faculty of Economics, University of Rome "Tor Vergata", Rome, Italy. Silvia Intini is an Assistant Professor in the Department of Management, Finance, and Technology, LUM - Libera Università Mediterranea, Bari, Italy.

• List of Figures. Introduction. The Concept of Money and Its Evolution Over Time. The Payment Industry and the Payment Tools. Blockchain, Virtual currencies, Cryptocurrencies, and Tokens. The Mining of Cryptocurrencies. The Main Cryptocurrencies on the Market. The Handling of Cryptocurrencies. The Central Bank Digital Currencies (CBDC). Conclusions. Index.

Gianni Nicolini is Full Professor of Finance, in the Department of Management and Law, Faculty of Economics, University of Rome "Tor Vergata", Rome, Italy. Silvia Intini is an Assistant Professor in the Department of Management, Finance, and Technology, LUM - Libera Università Mediterranea, Bari, Italy.

• List of Figures. Introduction. The Concept of Money and Its Evolution Over Time. The Payment Industry and the Payment Tools. Blockchain, Virtual currencies, Cryptocurrencies, and Tokens. The Mining of Cryptocurrencies. The Main Cryptocurrencies on the Market. The Handling of Cryptocurrencies. The Central Bank Digital Currencies (CBDC). Conclusions. Index.

Gianni Nicolini is Full Professor of Finance, in the Department of Management and Law, Faculty of Economics, University of Rome "Tor Vergata", Rome, Italy. Silvia Intini is an Assistant Professor in the Department of Management, Finance, and Technology, LUM - Libera Università Mediterranea, Bari, Italy.

• List of Figures. Introduction. The Concept of Money and Its Evolution Over Time. The Payment Industry and the Payment Tools. Blockchain, Virtual currencies, Cryptocurrencies, and Tokens. The Mining of Cryptocurrencies. The Main Cryptocurrencies on the Market. The Handling of Cryptocurrencies. The Central Bank Digital Currencies (CBDC). Conclusions. Index.