Smart Materials have physical properties that can be changed or controlled by external stimuli such as electric or magnetic fields, temperature or stress. Shape, size and color are among the properties that can be changed. Smart Material Interfaces are physical interfaces that utilize these Smart Materials to sense the environment and display responses by changing their physical properties. This workshop aims at stimulating research and development in interfaces that make novel use of Smart Materials. It provides a platform for state-of-the-art design of Smart Material interfaces.