What's the best order to read the comics?

I read them out of order storyline-wise and didn't realize it. It doesn't make that much of a difference, as the arcs are fairly self-contained, but my suggestion would be to read it in order of story-line.

The Other Half was a Dark Horse stand-alone, as I understand it. I also recommend The Shepherd's Tale, which is all about our yêu thích Shepherd. XD