Bioprediction is one topic around which there is recurring hype by scientists and nonscientists alike. Th e present book represents an excellent compendium of knowledge and research around bioprediction of forms of problematic behavior. If there is one recurring motif it is, indeed, “don’t hype!” Some of the hype to be found around bioprediction is blatant; some is more subtle. In cutting through the hype, this book surely succeeds in its principal intention: to provide a timely overview of newly emerging knowledge and uncertainties around the neuroscience, genetics, and psychology of ‘bad behavior’, and of the manner in which those in society are approaching or should be approaching such developments. Th e end achievement is not to minimize or maximize the concerns about the use of biomarkers to predict “bad” behavior, but rather to place these concerns in their proper multidisciplinary context. And that multidisciplinarity is an unusual strength of this collection.