Although several books on nanoscience and nanotechnology are available in the market, most of them deal with the research-level areas, whereas a few of them deal with the fundamentals of the subject. However, every effort is made by the authors of this book to cover all the topics needed for a beginner. Some of the important topics covered in this book are preparation, properties along with the applications of the materials. Nanotechnology is a multidisciplinary subject representing the convergence of various subjects. Therefore, explaining the subject is a big task and needs a proper approach so that the students may not be distracted. The book also provides a strong conceptual foundation of fundamentals of nanoscience and Nanotechnology upon which the engineering and technological applications are built.