Prof. Dr. Helen C. Leligou is currently (from 2017) an associate professor at the University of West Attica. From 2007–2017, she acted as an assistant professor at the Technological Educational Institute of Sterea Ellada. She received both Dip. Ing. and Ph.D. degrees from the National Technical University of Athens, Electrical and Computer Engineering Department, Greece. Her research interests lie mainly in the areas of computer networks and information-communication technologies, including routing protocols and trust management in wireless sensor networks; control plane technologies in broadband networks, including HFC, PON, WDM metro, and core networks; embedded and network system design and development; and IoT-enabled solutions for different application sectors like energy efficiency/optimization in buildings and for affect detection in learning environments. Currently, she is working on blockchain technologies and their use in the supply chain, in crowdsourcing solutions, and in educational credit validation applications combining blockchain technologies with IoT and artificial intelligence technologies. Her research results have been published in more than 50 scientific journals and more than 70 other means, like conferences and books. She is the scientific coordinator of the H2020-ASSET project. She has participated in more than 20 EU-funded ACTS, IST, ICT, and H2020 research projects in the above areas. She also acts as an evaluator for national and H2020 proposals.