Presidential Book Lists

In order to locate books about each president, I am going to add links to different book lists as I find them on the internet.

http://www.goodreads.com/list/show/46905.Positively_Presidential

A great list of books about first ladies (which I probably should also read)
http://menu.ci.cerritos.ca.us/collections/first/flc_bios.html

and my list:
http://www.paperbackswap.com/U-S-President-Bios/list/17716/