The book "Teaching and Learning in a Digital World" compiles the proceedings of the 20th International Conference on Interactive Collaborative Learning (ICL2017), which took place from September 27 to 29, 2017, in Budapest, Hungary. In an era of profound change in education, this work highlights the challenges posed by globalization, technological developments, and the need for flexibility and agility. Particularly in the field of engineering education, it is crucial to find innovative approaches to respond to these real-world challenges. The ICL conferences provide a platform for the exchange of relevant trends, research findings, and practical experiences related to new technologies and teaching methods. This book is a valuable resource for professionals engaged with the latest developments in digital learning and collaborative education.