This book presents concise definitions and illustrative contexts for many approaches, ideas, and paradigms related to digital education. Unlike existing glossaries that often focus solely on technical terminology, this resource uniquely integrates pedagogical, technological, and socio-cultural perspectives. It not only defines terms but also critically examines their implications for teaching and learning, providing a more holistic understanding of digital education. Contributors are: Isabel Balteiro, Miguel Ángel Campos-Pardillos, Ka Long Roy Chan, Salvatore Ciancitto, Liubov Darzhinova, Derya Duran, Georgios Ellinas, Stella Hadjistassou, Pascal Hohaus, Teppo Jakonen, Marjut Johansson, Merve Kıymaz, Ioannis Lefkos, Ruslana Margova, Claudia Mustroph, Maarit Mutta, Svitlana Nasakina, Liisa Peura, Alessandro Puglisi, Violeta Stojičić, Ralia Thoma, Outi Veivo, Johanathan Woodworth and Siyang Zhou.