Frontmatter — Table of Contents — Contributors — I. Formal sign systems — Introduction. Signs and Work — Interorganizational Systems: Communication, Cooperation, or Governance? — The Persistence of Systems in Organisations: Genre Analysis of Systems Decommissioning — Object-oriented Programming and Semiotics — Semiotical Analysis and Knowledge Analysis: The Case of Diagnosticai Work — Morphodynamic models of communication — II. Organisational Semiosis — Introduction. Norms and Self-reference — Discourse Analysis: An Approach to the Investigation of Organizational Emergence — The Communicative Organisation — Episodic Knowledge in System Control — Understanding Computer Applications in Use: A Human Activity Analysis — Signs, Information, Norms and Systems — Index