Flint, Anthony. This Land: The Battle over Sprawl and the Future of America. Baltimore: Johns Hopkins University Press. 2006.
Flint provides a very accessible introduction to the issues of urban sprawl, smart growth, and New Urbanism. He talks about smart growth, what it is, why he thinks its important, and the significant barriers that stand in the way. Although his pro-smart-growth bias is always clear, he does a pretty good job explaining the challenges and arguments against smart growth in a fair manner.
Ultimately, Flint contributes relatively few original ideas and his conclusions and his recommendations are weak. Still, it is presented in a highly readable and accessible format that make the book fun and easy to read.