This book constitutes the refereed proceedings of the Third International Conference of the Immersive Learning Network, iLRN 2017, held in Coimbra, Portugal in June 2017. The proceedings contain 17 full papers together with 4 short papers, carefully reviewed and selected from 80 submissions. This year's special focus is "Honoring Tradition, Immersed in the Future".

This volume constitutes the refereed proceedings of the 4th International Conference of the Immersive Learning Network, iLRN 2018, held in Missoula, MT, USA, in June 2018. The 12 revised full papers and the two revised short papers presented in this volume were carefully reviewed and selected from 57 submissions. The papers are organized in topical sections on environmental sciences, climate change, immersive technologies; immersive technologies in cultural heritage; immersive technologies in primary and secondary education; games and game design.