Indispensable for institutions with sociology, social work, or anthropology programs. Full of rich findings and new questions. Mills points scholars down a conceptual road that changes many of the things we thought we knew about multiraciality. Insightfully framed. Valuable for classroom use. Race and racial identity are clear and obscure simultaneously, always for certain, yet always questionable-the 'What are you?' that the racially ambiguous, among others, learn to anticipate. Mills has a ready phrase, equally loaded, to return with-'Why do you want to know?' This 'so what?' question is at the heart of this book. We have much [for which] to thank Melinda Mills and her exploration of the borders of race and multiracial identities.