The rapidly increased understanding of the molecular background of complex diseases facilitated the development of highly advanced therapeutic concepts. Such concepts aiming to consider individual signatures of genomic and proteomic biomarkers including pharmacogenomics as well as advanced diagnostic tools have been successfully implemented in clinical practice in various fields leading to significant improvement of treatment successes. This volume gives an up-to-date overview on applications of precision medicine in various clinical entities, on advanced techniques as well as on economic considerations.