Toxicogenomics is a new, dynamic and very promising field that can help optimize toxicity analyses and streamline research into active substances. It is of interest not only for basic research and development, but also from a legal and ethical perspective. Here, experts from all the fields mentioned will find solid information provided by an international team of experienced authors. With its approach as an interdisciplinary overview, it will prove particularly useful for all those needing to develop appropriate research strategies. Coverage ranges from the technology platforms applied, including DNA arrays or proteomics, via the bioinformatics tools required, right up to applications of toxicogenomics presented in numerous case studies, while also including an overview of national programs and initiatives as well as regulatory perspectives.