1. The ?rst edition of this book was published in 1977. The text has been well received and is still used, although it has been out of print for some time. In the intervening three decades, a lot of interesting things have happened to mathematical logic: (i) Model theory has shown that insights acquired in the study of formal languages could be used fruitfully in solving old problems of conventional mathematics. (ii) Mathematics has been and is moving with growing acceleration from the set-theoretic language of structures to the language and intuition of (higher) categories, leaving behind old concerns about in?nities: a new view of foundations is now emerging. (iii) Computer science, a no-nonsense child of the abstract computability theory, has been creatively dealing with old challenges and providing new ones, such as the P/NP problem. Planning additional chapters for this second edition, I have decided to focus onmodeltheory, the conspicuousabsenceofwhichinthe ?rsteditionwasnoted in several reviews, and the theory of computation, including its categorical and quantum aspects. The whole Part IV: Model Theory, is new. I am very grateful to Boris I. Zilber, who kindly agreed to write it. It may be read directly after Chapter II. The contents of the ?rst edition are basically reproduced here as Chapters I-VIII. Section IV.7, on the cardinality of the continuum, is completed by Section IV.7.3, discussing H. Woodin's discovery.

As organizational scholars, we are accustomed to using theoretical lenses to understand organizational practices and outcomes. That is, we conceptualize what people do, feel and think in their everyday organizational interactions through the use of theoretical language and models to uncover individual and/or social antecedents and outcomes. We tend to ignore, however, how our own day-to-day work as scholars - doing research - is subjected to the same pressures, affected by similar factors, and should be accounted for through similar modes of analyses. We treat our studies and theories as solid anchor points and as objective truths rather than as constructions embedded within individual, organizational, field and societal contexts. This volume is a must read for all researchers interested in understanding our own craft. Building on established traditions in the sociology of knowledge, we direct a reflective and critical gaze towards the structures, practices and meaning systems that ground and shape how we produce and consume managerial knowledge and organization theory. The volume includes both empirically-based papers and reflective essays that explore theoretical concepts and analytical reasoning to explain, critique and advance the ways in which we write about, produce, and consume theory.

1. The ?rst edition of this book was published in 1977. The text has been well received and is still used, although it has been out of print for some time. In the intervening three decades, a lot of interesting things have happened to mathematical logic: (i) Model theory has shown that insights acquired in the study of formal languages could be used fruitfully in solving old problems of conventional mathematics. (ii) Mathematics has been and is moving with growing acceleration from the set-theoretic language of structures to the language and intuition of (higher) categories, leaving behind old concerns about in?nities: a new view of foundations is now emerging. (iii) Computer science, a no-nonsense child of the abstract computability theory, has been creatively dealing with old challenges and providing new ones, such as the P/NP problem. Planning additional chapters for this second edition, I have decided to focus onmodeltheory, the conspicuousabsenceofwhichinthe ?rsteditionwasnoted in several reviews, and the theory of computation, including its categorical and quantum aspects. The whole Part IV: Model Theory, is new. I am very grateful to Boris I. Zilber, who kindly agreed to write it. It may be read directly after Chapter II. The contents of the ?rst edition are basically reproduced here as Chapters I-VIII. Section IV.7, on the cardinality of the continuum, is completed by Section IV.7.3, discussing H. Woodin's discovery.

Institutions - the structures, practices, and meanings that define what people and organizations think, do, and aspire to - are created through process. They are 'work in progress' that involves continual efforts to maintain, modify, or disturb them. Institutional logics are also in motion, holding varying degrees of dominance that change over time. This volume brings together two streams of thought within organization theory - institutional theory and process perspective - to advocate for stronger process ontology that highlights institutions as emergent, generative, political, and social. A stronger process view allows us to challenge our understanding of central concepts within institutional theory, such as 'loose coupling', 'institutional work', the work of institutional logics on the ground, and institutionalization between diffusion and translation. Enriched with an emphasis on practice and widened by taking a broad view of institutions, this volume draws on the Ninth International Symposium on Process Organization Studies to offer key insights that will inform our thinking of institutions as processes.