Psychiatric Genetics provides the reader with a complete view of the methodological problems encountered in psychiatry genetics and proposes solutions to commonly occurring questions. The best European and American specialists have given a thorough review on the advantages and disadvantages of genetic epidemiological methods, the way to choose a genetic marker or a clinical interview and how to ascertain patients, unaffected relatives and controls and what should be the criteria to include a case or a control. New phenotypic methods are described focusing on candidate symptom and endophenotype approaches. Examples coming from cognitive neurosciences, biochemistry, electrophysiology and brain imaging techniques are reviewed. This book will serve as an essential handbook for psychiatrists, psychologists, and geneticists involved in the genetics of psychiatric disorders.