Phil Ayres is Assistant Professor at the Royal Academy of Fine Arts School of Architecture (RASA), Copenhagen, Denmark.

• Introduction: Persistent Modelling – Reconsidering Relations Part 1: Modelling Material 1. The Historical Context of Contemporary Architectural Representation 2. The Persistence of Faith in the Intangible Model 3. Intention and the User 4. A Communications Primer Revised 5. A Suggested Model of A-Functional Architecture 6. Modelling Modelling – Trajectories in Developing Instrumental Design Processes 7. Design Issues of Time-based Phenomena and the Notion of a Persistent Model: A Parametric Exploration of Acoustic Performance 8. Defining Adequate Models for Adaptive Architecture 9. The Death of Determinism Part 2: Material Modelling 10. The Fall 11. Persisting with Material: Engaging Material Behaviour Within the Digital Environment 12. The Active Model: A Calibration of Material Intent 13. Beneficial Change: The Case for Robotics in Architecture 14. The Building and its Double: Entropic Modeling in the Hylozoic Soil Series 15. Persistent Approaches to Designing Functionally Graded Materials