Aphelion

Go here:

http://thebookshelfmuse.blogspot.com/

On the right side of the page are some sales links to the book they're selling, but right below that is a link for a free PDF download which is really pretty decent.

The site itself is worthwhile visiting, and I recommend that. I've got it bookmarked. Snag the freebie while you're there, but do stop in and look around.