The recent introduction of nanomedicines in the drug therapy arena is revolutionizing the management of severe diseases. The key advance in the field is the optimization of the biological fate of drug molecules, thus improving the therapeutic effect while keeping to a very minimum the associated toxicity. Volume one of this book series, Nanoplatforms in Drug Delivery, established the basic aspects in the development of drug-loaded nanoplatforms, the so-called nanomedicines or nanodrugs, focusing on representative materials and strategies used in their formulation.