Over the past 25 years, Prof. Stephanidis has been engaged as the Scientific Responsible in more than 50 National and European Commission funded projects in the fields of Human-Computer Interaction, Universal Access and Assistive Technologies. In the beginning of the '90s he introduced the concept and principles of Design for All in Human-Machine Interaction and for Universal Access in the evolving Information Society. He has published more than 550 technical papers in scientific archival journals, proceedings of international conferences and workshops related to his fields of expertise. He is the Editor-in-Chief of the Springer international journal "Universal Access in the Information Society". He is the Editor and (co-)author of 14 out of the 30 chapters of the book " User Interfaces for All - concepts, methods and tools" published by Lawrence Erlbaum Associates (2001). He is also Editor and (co-)author of many chapters of “The Universal Access Handbook” that was published in June 2009 by CRC Press Taylor & Francis Group. During the period 1995 - 2006, he was the Founding Chair of the ERCIM Working Group "User Interfaces for All" and General Chair of its 9 international Workshops. During the period 1997 - 2000, he was the Founding Chair of the International Scientific Forum "Towards an Information Society for All", in the context of which he edited White Papers concerning the roadmap and R&D agenda towards an Information Society for All. Since 2001 he is the Founding Chair of the International Conference "Universal Access in Human - Computer Interaction". Since 2007 he is the General Chair of the HCI International Conference, that takes place every two years with around 2,000 participants.sign time, rather than after development. This perspective is based on the fusion of new requirements and concepts with pre-existing concepts in the domains of HCI (e.g., user-centered interface development) and Assistive Technologies (e.g., specific interaction techniques and devices for disabled user groups), and constitutes a major breakthrough with respect to previous approaches and practices in accessibility.