I'll put together a long list later, but for now, I'll expand this to include websites...
http://www.urbanism.org - a newsfeed of urban development articles from major newpapers/websites/blogs etc. around the world. One of the best sites for keeping up to date on what's going on.
as for author's, shockingly, macca listed my favorites, but add:
Christopher Alexander - The Timeless way of building (actually any of his stuff is worth reading)
James Howard Kunstler - The long emergency
Christopher Leinberger - The Option of Urbanism
A great book from a real estate developer/planner on the current rise of dense urban development (and the impending fall of the suburb). He's getting quoted every other week in major newspapers it seems.
http://books.google.ca/books?hl=en&i...result#PPP9,M1
Charles Landry - The Art of City Making & Creative Cities
a couple of the best books on how culture/creativity and space for culture to develop is so important to a cities success.