This booklet ( a joint project of the Advancement Project and the Lawyer's Committee for Civil Rights Under Law) provides an extensive overview of restrictive voting laws, especially concerning minority voters. Daniels begins with a summary of voter obstructions and intimidation in the 2012 election, and then places that within the context of the history of voting and race in America.
Most recently, the Section 5 protections of the Voting Rights Act of 1965 were effectively removed by the Shelby County v. Holder Supreme Court decision. Daniels then explains what this means practically and legally for minority voters and how organizations like the Lawyers' Committee and the Advancement Project are working to ensure voters are not unfairly deterred.
Lining Up: Ensuring Equal Access to the Right to Vote, Joint Report, Advancement Project & Lawyers' Committee For Civil Rights Under Law (Aug. 24, 2013), http://b.3cdn.net/advancement/666cb8d8d9d4a9a169_kxm6yslwk.pdf.