While there are a wide variety of shapes and morphologies of producible nanoscale particles, scientists in the fast-growing field of nanoscale assemblies and superstructures must define a method of organization for nanocolloids in more complex structures, define what kind of structures are best suited for a range of applications, and study the new properties appearing in nanocolloid superstructures. This book assesses the current status of nanoparticle assemblies and the requirements for different applications of organized nanomaterials. It addresses changes in various properties of individual particles when they form agglomerates and simple assemblies, and describes methods of organizing particles in complex nanostructured superstructures.