Data on depression and anxiety disorders now spans a range of fields from molecular neuroscience, through cognitive and affective science, and on to evolutionary psychology. The author here integrates this work into one volume, providing the clinician with a theoretical synthesis as well as a useful practical framework. This guidebook helps professionals in these various fields to manage patients with major depression, generalized anxiety disorder, obsessive-compulsive disorder, panic disorder, post-traumatic stress disorder and social anxiety disorder. Neuroscientists, neurologists, pharmacologists, psychiatrists and mental health practitioners will benefit from this text.