'Installation Theory: an impressive, powerful synthesis and a bold, wide-encompassing theory that any social scientist will need to consider.' Claude Fischler, Centre National de la Recherche Scientifique (CNRS), Paris 'Installation Theory offers an ambitious, wholly original, and timely contribution to social science's engagement in rapidly changing, technologically driven lifeworlds. Lahlou brings to his theoretical framework an extraordinary transdisciplinary skill set (social psychology, biology, statistics, economics, cognitive science, industrial engineer, management, to name a few). Installation theory is new to me, as it will be to most readers, but the framework is worth opening the intellectual door. The paradigm assembles subjective, material, and institutional affordances of socio-technical devices to explain how coordination of human behavior is induced, sustained, and transformed and offers practical insight into pressing design roadblocks to achieving health, civic, and economic goals.' Elinor Ochs, University of California, Los Angeles 'Increasing attention is devoted to understanding the genetic and neural basis of human behaviour. This book explores behaviour in the multiple, every-day settings of social life. By linking the physical environment with our cognitive interpretative flexibility and with social norms and regulation a non-deterministic understanding emerges how living together can be better managed and (re)designed. For everyone interested in how innovation and change can be re-assembled with the continuity of the old, Lahlou offers a solid and practice-oriented approach - novel and exciting!' Helga Nowotny, Former President European Research Council 'Installation Theory achieves an important integration of the behavioral and social sciences by calling attention to a number of obstacles behavioral/social scientists prefer to ignore, by achieving ecological validity. Lahlou's important book is a careful study of a wide range of daily life practices and reveals the complexity of 'ruled behavior'. The book will challenge all behavioral/social science disciplines.' Aaron Cicourel, University of California, San Diego 'Saadi Lahlou offers an ambitious, expansive and highly original theoretical synthesis to account for the social regulation of human behaviour. Installation Theory deserves the full attention of social scientists for its fecund approach to understanding of and practical intervention in the social world.' Alan Warde, University of Manchester 'While I am confident that Lahlou's Installation Theory will be of lasting value for the scientific enterprise, I am hopeful it will also be a basis for the radical changes our world requires.' James D. Hollan, Distinguished Professor of Cognitive Science, University of California, San Diego 'Lahlou presents a bold and innovative theory of social stability and change. At the centre is a multi-level model analysing the opportunities and constraints on behaviour of the physical, institutional and psychological environments. The many implications for, and examples of, behaviour change remind me of Kurt Lewin's dictum 'there is nothing so practical as good theory'.' George Gaskell, London School of Economics and Political Science