The Fiscal Theory of the Price Level is a book I'm writing on that topic. It now has a full draft, here.
Comments, typos, suggestions, complaints, parts you find too easy, part you find too hard, things you think are wrong, parts you find repetitive, parts you find need better connection, things I should add, things I should delete are all most welcome!
I also did a 2 hour video mini-course on FTPL for the Becker-Friedman Institute last summer, with slides/notes here.
Update: The video link is now fixed (2/1/2012)