A very good introduction to Django, if you're coming from outside the Django community. It is easily read, covers a lot of ground, but fails to live up to its promise in that you will know how to do ceratin stuff in Django after reading it, but you will not understand why!

All in all, very worth reading if you want to understand the hoopla about Django (even for old PHP/CMS users). And it manages to introduce you to the GAE as well, so good luck!