Any Good Books On Razors?

I'm looking to start buying a few dirt-cheap razors on ebay and rehab them and learn more about razors in general. Any decent razor guides out there that anyone knows about? Basically just want to know different razor brands and their quality, location, etc. Thanks a lot!

Standard Guide to Razors 3rd ed by Roy Ritchie & Ron Stewart
http://www.amazon.com/Standard-Guide...7872561&sr=8-1

-and-

http://www.amazon.com/Straight-Razor...d=66QRV4N6J6Q3

"The Sword And Knife Makers of Germany 1850-2000" by Anthony Carter
"American Premium Guide to Knives & Razors" by Jim Sargent
"Cattaraugus Cutlery Co." (catalog reprint) by Roy Ritchie and Ron Stewart
"The Razor Anthology".
"Goins' Encyclopedia of Cutlery Markings" by John and Charlotte Goins.

Thanks a lot guys! This is just what I was looking for!