This book presents a detailed account on nanoindentation tests, which hold great significance in applied material science. Numerous spheres of science and industry have shown increasing interest in the field of nanotechnology. Over the past few decades, rapid advances have been made in micro-level experimental techniques that have transformed material science completely. It has now become possible to use the knowledge of building blocks and microstructure alterations at nanoscale for design and creation of new materials. There has been a growing interest across various spheres of research and application towards the utilization of micro-level mechanical testing technique of nanoindentation. Currently, a vast gamut of fields like engineering, electronics and composites, and biomechanics can be tested through this technique. This book is an attempt to present an elaborate account on the lesser known aspects of micro-indentation and provide readers with a brief overview on current discoveries in nanoindentation. The readers of this text will benefit from the various subjects dealt with in this book and it will serve as a useful source of reference on the study of nanoindentation.