Nanomaterials are the materials of which the size of a single unit is between 1 to 1000 nm. Research in nanomaterials uses material science as the basis to approach nanotechnology. Materials which have configurations at nanoscale often have unique electronic, optical or mechanical properties. On the basis of the sources, nanomaterials are classified into three types- engineered, incidental and natural. The nanomaterials which have been intentionally engineered and manufactured by humans to have specific properties are known as engineered nanomaterials. Incidental nanomaterials are produced during mechanical or industrial processes as a byproduct. The natural and functional nanomaterials which are found in biological systems are known as natural nanomaterials. This book brings forth some of the most innovative concepts and elucidates the unexplored aspects of nanomaterials. It will provide comprehensive knowledge to the readers. Coherent flow of topics, student-friendly language and extensive use of examples make this book an invaluable source of knowledge.