Book excerpt: These proceedings cover the most recent progress and development on the physical mechanisms, materials technology, structure, properties, and application of electrorheological (ER) fluids. This area of research may make a great impact on industry and technology. Contributions from most leading experts in the field are included. This volume serves as a stimulating and valuable reference for students and research workers in condensed matter physics, materials science, chemistry and engineering. It not only gives details about the leading edge of research and applications, but also provides an overview of the field.