This volume is a compilation of selected papers that were presented at the annual conference of the International Council of Educational Media (ICEM) in Tallinn, Estonia, on September 5 - 7, 2018. The book reports on recent interdisciplinary research and innovative practices regarding school-wide implementation of digital innovation and connects it with recent developments in the field of educational media. The key concept is "Digital Turn," which is understood as a socio-technical transition towards next-generation digital learning ecosystems in education. Although Digital Turn can also be implemented at the classroom or national levels, most of the contributions in this volume take a whole-school perspective on the policies and practices regarding digital innovation, educational media, e-assessment, digital competences of teachers and students as well as learning design and learning analytics.