This book addresses the digitization of all processes and value chains in the tourism, travel, hospitality and catering industries. By exploring the new technological trends it provides a solid basis for analysing the impacts of the Information Communication Technology (ICT) revolution on the tourism industry. The book adopts a strategic management and marketing perspective for tourism enterprises and destinations. It suggests that ETourism revolutionizes all business processes, the entire value chain as well as the strategic relationships of tourism organizations with all their stakeholders. It additionally focuses on how ICTs are employed in airlines, hotels, travel agencies, tour operators and destinations management organizations. The book demonstrates that tourism ICTs increasingly determine the competitiveness of the organization, and therefore, they are critical for the competitiveness of the industry in the longer term.