Speciation is again at the forefront of evolutionary research, and Jerry A. Coyne and H. Allen Orr's Speciation is a unified, critical, and up-to-date account of the scientific research relevant to the origin of species. Reviewing the book in RNCSE (2005 May-Aug; 25 [3-4]: 40-41), Norman A Johnson wrote, "Jerry Coyne and Allen Orr, who have alone and together made several seminal discoveries in speciation, have written a magisterial, comprehensive volume ... Had Coyne and Orr just published their annotated bibliography, that would be a great service for professional evolutionary biologists and their students. But they do so much more!"