There are several themes that emerge in this excellent book. The first has to do with how African-Americans led the struggle Masur describes, even as racially discriminatory laws made them vulnerable — whether to the whims of local officials exerting their discretion or to white mobs seeking legal cover for anti-Black violence. Another concerns how the language of race and class was, as Masur puts it, 'fungible': Even after the Civil War, legislation cracking down on 'vagrancy' and 'vagabondage' allowed state legislatures in the former Confederacy to practice discrimination under cover of laws that seemed 'race-neutral.' So much in this history was contingent; so much could turn on a single word. Toward the end of her book, Masur describes the debates over the Civil Rights Act of 1866, when senators haggled over who would be protected against racial discrimination, deciding to replace the inclusive word 'inhabitants' with the more restrictive 'citizens.'.