Book excerpt: Gathering the outcomes of the 27th annual international eTourism conference ENTER2020, this book presents new research, innovative systems and industry case studies on the application of Information and Communication Technologies (ICT) in travel and tourism. It shares the latest findings discussed at the conference and highlights various topics within the field, including social media, destination marketing, recommender systems and decision-making, virtual and augmented reality, technology in tourism, and research on hotels and activities. Readers will find a wealth of state-of-the-art insights and ideas on how information and communication technologies can be applied in travel and tourism.