Organized somewhat loosely into three sections, the content seems to unfold like a mosaic, as opposed to progressing in a linear fashion. The chapters are authored by highly accomplished scientists who eloquently synthesize research in their particular area, using clearly defined terms and providing illustrations of complex ideas. Some chapters are focused broadly and provide succinct and insightful overviews of current work in topics such as genetics, neuroimaging, biochemistry, cognition, and language. In my opinion, these reviews are well organized, clear, and concise. In fact, one of the unique strengths of this volume is its accessibility for informed, but not necessarily expert, readers. For example, the chapter on genetics by Sousa and colleagues integrates an elegant primer on genetic tools and approaches without condescending to or overwhelming the nonexpert reader. The chapter on neuroimaging by Spencer and colleagues also provides a brief review of current technologies while summarizing the outcomes attained thus far within each approach. Informative and interesting tables and figures are presented throughout the book, encouraging some active synthesis for the interested reader.