In the digital era, emerging technologies such as artificial intelligence, big data, and blockchain have revolutionized people's daily lives and brought many opportunities and challenges to industries. With the increasing demand for talents in the fintech realm, this set serves as a good guide for practitioners who are seeking to understand the basics of fintech and the applications of different technologies. This set starts with fundamental knowledge in finance, technology, quantitative methods, and financial innovation to lay the foundation for the fundamentals of fintech, and understanding the trending issues related to fintech such as regulation, applications, and global trends. It is a good starting point to the fintech literature and is especially useful for people who aspire to become fintech professionals.