This open access book provides a comprehensive overview of the European Electricity Market Coupling. Tracing the evolution of the EU’s efforts to create an Internal Energy Market, it explores the history, principles and roles of all key actors from Transmission System Operators (TSOs) to service providers to National Regulatory Authorities (NRAs) in Single Day-ahead and Intraday Coupling. Key topics include the framework of market coupling, the day-ahead and intraday algorithms, procedures, financial settlement, and the viewpoints from traders to interested countries to join the European Electricity Market Coupling in the future. An essential read for industry professionals and scholars alike, this book offers first-hand insights into the practical processes and fundamentals of electricity trading in Europe.