| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| A New Theory for American Poetry: Democracy, the Environment, and the Future of Imagination | 978-0-674-01988-1 (0-674-01988-1) | 2006 |
| Time, Space, and Motion in the Age of Shakespeare | 978-0-674-02308-6 (0-674-02308-0) | 2007 |