I find that as a writer I have to read. The more I read the more I want to write. I read fiction in all sorts of genres especially forcing myself to read those sort of books that I would not naturally choose for relaxation. I read to be stimulated and disturbed, to be challenged and to be inspired. Reading is a way of understanding what is going on in other peoples minds and understanding how people unlike youself think.
I also read non fiction both to understadn the complexities of our modern world and also to research for my own writing.
If you want to be a writer - read.