Peroxisome proliferator activated receptors (PPARs) attract great attention in light of the wide spectrum of genes of biological and medical relevance identified as under their control. As a consequence, our knowledge of the role of these receptors in physiology and pathology continues to grow at a fast pace and PPARs have become an interesting target for the treatment of many pathological conditions, including diabetes and atherosclerosis. This volume provides an authoritative view of the clinical and scientific developments within this evolving area of study.