This is the second edition of this book. This book brings together many scientific and technical disciplines, including mineralogy, crystallography, precipitation, powder technology, materials science and many more. All the chapters have been updated for this book and there is the addition of an extra one on Composites using Nanofillers. This book is a fundamental guide to the subject and will be of interest to filler producers, machinery manufacturers, polymer compounders and suppliers of processing aids and surface modifiers.