Systems theory and practice in the knowledge age: Proceedings of the Seventh International Conference of the UK Systems Society, 7-10 July 2002, York, United Kingdom. Gillian Ragsdell, Daune West and Jennifer Wilby (Eds.); Kluwer Academic/Plenum Publishers, NewYork, 2002, 478pp., price £85 hardcover, ISBN 0-306-47247-3.