This book presents an overview of the development of digital finance. It covers various aspects of digital finance, including its definition, evolution, and importance in modern economics. It explores the interdisciplinary perspective of digital finance and its relationship with capitalism, and discusses the key factors influencing the development of digital finance, as well as the challenges and opportunities it faces. It also offers practical insights into digital finance, such as the innovative digital financial models and platforms and the strategies of digital transformation in commercial banks. What is new about this approach is that the book takes a holistic view of digital finance, covering not only its economic and financial aspects but also its social and environmental impacts. It also offers a critical evaluation of the challenges and opportunities in digital finance from a global perspective. In this book, authors look into the impact of digital finance in various fields, such as monetary theory, wealth management, central bank digital currency, international monetary system, and network security and data privacy.