Ian Angell has been Professor of Information Systems at the London School of Economics since 1986. Prior to that he researched and taught Computer Science at Royal Holloway College, and University College London. Angell has very radical and constructive views on his subject, and is very critical of what he calls the pseudo-science of academic Information Systems. He has gained a certain notoriety worldwide for his aggressive polemics against the inappropriate use of artificial intelligence and so-called knowledge management, and against the hyperbole surrounding e-commerce. His main research work concentrates on organizational and national I.T. policies, on strategic information systems, and on computers and risk (both opportunities and hazards), particularly the systemic risks inherent in all socio-technical systems and the security threats posed to organisations by the rapidly diffusing international information infrastructure.