This is a book about medical genomics, a new field that is attempting to combine knowledge generated from the Human Genome Project (HGP) and analytic methods from bioinformatics with the practice of medicine. From my perspective as a research molecular biologist, genomics has emerged as a result of automated high-throughput technologies entering the molecular biology laboratory and of bioinformatics being used to process the data. However, from the perspective of the medical doctor, medical genomics can be understood as an expanded form of medical genetics that deals with lots of genes at once, rather than just one gene at a time. This book is relevant to all medical professionals because all.