Book excerpt: This book presents developments and future trends in e-commerce, which is shaped by customers' new digital communication and consumption patterns. Gerrit Heinemann sheds light on e-commerce business models, channel excellence as well as success factors such as digital time advantages and customer centricity. He analyzes the digital challenges and highlights the consequences and opportunities associated with online commerce. Recognized best practices illustrate how successful digital commerce works and what the "lessons learned" of the past years are. The 13th edition describes which new approaches will shape the future of online retail and which developments will remain long-term issues. While, for example, app and smartphone commerce, including mobile payment, continue to be long-running issues, the environmental issue is coming at online commerce with a concentrated charge. This means that people's growing need for more sustainability and consideration for the environment has now also arrived in e-commerce. This work is therefore devoted to sustainable e-commerce in the context of online logistics, which runs counter to the new trend towards quick commerce. The topics of climate neutrality and returns management are also increasingly coming into focus. In addition, current topics such as the marketplace theme and social commerce will be explored in greater depth. Furthermore, numerous new legal requirements are taken into account, which place increased obligations on marketplace operators in particular. The content - Meta-targeting and business ideas in online retailing - Business model of online trade - Forms of online trade - Business systems and benchmarks in e-commerce - Best practices and risks in online retailing