I don't think I did anything more fancy than google "amazon kindle game of thrones" which took me to http://www.amazon.com/Game-Thrones-Song-Fire-ebook/dp/B000QC...

I didn't buy them as a set - I bought them one by one.

Hope that helps. Fun books.

You must be new to the internet, then:

http://www.amazon.com/Game-Thrones-Song-Fire-Book/dp/0553386...

"A Game of Thrones" by George R.R. Martin: http://www.amazon.com/Game-Thrones-Song-Fire-Book/dp/0553381...

GRRM manages to create an alternate world that feels real, where characters have flaws, nothing is black and white, and the good guys don't always (or even frequently) win. By far the best book (and series) I've ever read.