Planning a workshop

I picked up a book on building sheds in the hardware store. I am going to design myself a workshop out in the back based on some of the ideas in the book and next summer build me a nice place where I can go out to work on my novels in the yard. That way I can get away from the noise of the house and have my workshop out there to work in rather than have my office tied to the house.

I'll probably have to work inside in the winter, but current plans are to include a fireplace in the work shop so I can keep it heated when I am out there.