Epigenetics is the study of both heritable and non-heritable changes in the regulation of gene activity and expression that occur without an alteration in the DNA sequence. This dynamic and rapidly developing discipline is making its impact across the biomedical sciences, in particular in toxicology where epigenetic differences can mean that different individuals respond differently to the same drug or chemical. Toxicology and Epigenetics reflects the multidimensional character of this emerging area of toxicology, describing cutting-edge molecular technologies to unravel epigenetic changes, the use of in vivo and in vitro models, as well as the potential use of toxicological epigenetics in regulatory environments. An international team of experts consider the interplay between epigenetics and toxicology in a number of areas, including environmental, nutritional, pharmacological, and computational toxicology, nanomaterials, proteomics and metabolomics, and cancer research. Topics covered include: environment, epigenetics and diseasesDNA methylation and toxicogenomicschromatin at the intersection of disease and therapyepigenomic actions of environmental arsenicalsenvironment, epigenetics and cardiovascular healthtoxicology, epigenetics and autoimmunityocular epigenomics: potential sites of environmental impact in development and diseasenuclear RNA silencing and related phenomena in animalsepigenomics – impact for drug safety sciencesmethods of global epigenomic profilingtranscriptomics: applications in epigenetic toxicology Toxicology and Epigenetics is an essential insight into the current trends and future directions of research in this rapidly expanding field for investigators, toxicologists, risk assessors and regulators in academia, industry and government.