Innovation is a key goal of most organisations, and digitalisation through information and communications technology (ICT) is a key support means. The variety of ICT based innovation is striking, as is its current impact on most of the world’s gross product. In this book we aim to map out a broad overview of ICT supported innovation on practical, evidence based context level, as well as on theoretical, and methodological levels. Consequentially, we present multi-disciplinary views on organisational innovation in enterprises and the public sector, as well as the ubiquitous, social media based user innovation. The studies included in this book will thus guide both innovation scholars as well as industrial practitioners-and innovators at large-in their present and future innovation studies and undertakings. In detail, we include innovation in knowledge work and human-computer interaction; innovation of and in socio-technical systems; and user based innovation in public services vs. innovation in social media use. Our contexts include innovative mobile solutions as well as factories of the future, with a focus on 3D and 4D printing.