The City as a Highly Complex Entity: Cities as Self-Organizing Complex Systems; A Short Discussion of Alternative Approaches to Modelling Complex Self-Organizing Systems; The Possibilities and Limits of Self-Organisation; On the Foundations of Social Dynamics: An Efficient Mathematical Statement of a General Framework Underlying a Complex Nonlinear Social Determinism: A Supra-Observer and a Suprastructure; Urban Development as a Guided Self-Organisation Process; Strange Loops, Tangled Hierarchies and Urban Self-Regulation; The Fractal Geometry of Urban Organisation: Beyond the Crisis of 'Spontaneous Order'; The Complexity Paradigm in Architecture.- The Sciences of the City: Urban Research and Complexity; Beyond Complexity in Urban Development Studies; Model, Plan and Process for the Control of Urban Systems; Self-Referential Processes of Spatial Integration; Innovation, Agglomeration and Complexity in Urban Systems; The Sciences of the City: Analytical Tools and Complexity; Towards a Semiotic Theory of the City and the Territory as a Landscape; Assessing Uncertainty and Complexity in Urban Systems.- The Planning of the City: The Nexus between Analysis and Design: A Case Study of an Uneasy Relationship; Order and Change, Rule and Strategy; Selected Issues of Urban Planning; New Conditions and Requirements for Urban Government; Town Planning and Fluctuations of Rules Covering Time and Space; China in Search of a New Planning Paradigm; The Paradoxical Nature of Territorial Change: Science Parks and the Case of Trieste; Strategic Planning in Italy and the New Local Authority Act: The Master Plan for the City of Venice; The Art of the Science of the City.- The Methodologies of the Urban Sciences: Design and Use of Information Systems for a Sustainable Complex City; An Information System for Planning Mobility and Transport in the Metropolis: Proposed Methodology for Setting up an Integrated Tool for DecisionSupport; Urban Information Systems and Sustainable Urban Development; Towards the Complex City: Approaches and Experiments in Spatial Economics; Mathematical Models for Simulating Urban Mobility Systems: State of the Art and Lines of Development; A New Perspective for Methodologies in Spatial and Urban Analysis; Towards an Environmentally Compatible Mobility in the Region of Stuttgart.