A Different Kind of Urb: New York Times book review and sample chapter from The Regional City.
Calthorpe, Peter: Biography from his firm's website.
Peter Calthorpe: The Way Cities Oughta Be: Peter Gauvin interviews the design consultant behind Palo Alto's Comprehensive Plan revision, who also coauthored the book "Sustainable Communities".
The Next American Metropolis: A review of the 1993 Peter Calthorpe book by Scott London.
Wikipedia: Peter Calthorpe: Encyclopedia entry provides biographical information.