Proceedings of the NATO Advanced Research Workshop held in Santa Fe, New Mexico, April 1993. The papers are organized in sections dealing with amplitude equations; pattern formation at phase boundaries and other interfaces; hydrodynamics in complex and simple systems; electrohydrodynamic convection in liquid crystals; phase separation in complex systems; chemical and materials instabilities; noise, turbulence, chaos, and intermittency; and pattern formation in biological systems. Annotation copyright Book News, Inc. Portland, Or.