Book excerpt: This book constitutes the thoroughly refereed post-conference proceedings of the 8th International Conference on Information and Communication Technologies in Agriculture, Food and Environment, HAICTA 2017, held in Chania, Crete, Greece, in September 2017. The 14 revised full papers presented in this book were carefully selected from the 55 accepted full papers out of 124 submissions. The selected papers span across various subjects, from ICT innovations and smart farming, to decision support systems, as well as precision farming, disease diagnosis using mobile devices, IoT for monitoring and controlling animal production, sensor-based solutions, GIS-based water management, environmental planning, information systems for monitoring of fish stocks and fisheries, information management in the agri-food sector, and forestry planning and management.