Part 2, "Mind Meets Molecule," is essentially Neuroscience and Genetics 101. Andreasen is a remarkably clear writer, and in the three chapters in this section she provides elegant overviews of neuroanatomy, neurotransmitter systems, mapping of the human genome, and functional neuroimaging. Photos, illustrations, charts, and tables amply supplement the text. For the mental health professional whose training preceded the "Decade of the Brain," these chapters may be very enlightening. Having heard a variety of explanations of the science of magnetic resonance imaging, I found Andreasen's to be, without a doubt, the clearest.