This book presents an overview of the entire field of nanotechnology, focusing on key essentials, with which the reader will be able to erect his or her own personal scaffold on which the amazingly diverse plethora of detailed information emerging from countless laboratories all over the world can be structured into some kind of coherent order. The aim of this book is to make sense of nanotechnology, to explain things thoroughly enough to be intelligible while still remaining introductory. The primary readership is expected to be engineers and scientists who have previously been working in other fields but are considering entering the nano field and wish to rapidly acquire an appreciation of its vocabulary, possibilities and limitations. The secondary readership is anyone curious about nanotechnology, including undergraduates and professionals in other fields.