The ability to thoroughly characterize polymer colloids has long been a cornerstone of their use in fundamental work. New techniques such as dielectric spectroscopy and neutron scattering are becoming increasingly important. The contents of this book reflect the wide interest in the field of polymer colloids with chapters covering the preparation and properties of conducting particles, as well as composite particles and swellable particles. Many other materials such as proteins, polymers, polyelectrolytes, and surfactants interact strongly with the surface of polymer latex particles and new work on these aspects is covered, along with recent developments in the use of lattices.