The specialist book "Electronic Relationship Marketing in Banking" by Sonja-Maria Salmen offers a comprehensive analysis of how banks can utilize digital technologies to strengthen their customer relationships while optimizing costs. It highlights the importance of electronic customer care technologies and their potential to enhance customer loyalty. Through impressive studies and practical examples, it demonstrates how banks can not only increase their efficiency but also enhance customer satisfaction by employing digital strategies. The book is aimed at professionals in the banking sector as well as students of economics who wish to engage with the challenges and opportunities of digital transformation in the financial sector.