I have been playing electric guitar nearly two years and I have decided I want to learn written music but dont know where to begin. I was thinking of buying a book to work my way through but dont know which ones are the best/appropriate.

Does anyone know what is the best way to go about learning written music and what books/websites are the best for this?

Any advice would be appreciated.

It won't help if you want to play rock guitar. Just saying... depends on your goals as a musician. But it helps for interpreting classical