Provides a good understanding of the surface to volume ratio and its effects in the properties associated with nanostructures. The difference between classical and quantum mechanical theories are explained in a lucid manner. Since tunnelling is a concept to be understood well, one full chapter is dedicated to this, with examples of different potential barrier problems. The transport phenomenon in nanostructures and the fundamental building block of nanoelectronic devices - single-electron transistors are covered in detail. The mathematical modelling will help readers understand and run their own simulation programs.