They're able to face both ways (window front , and hobby). If you have a window you want to put it in, you most likely will need a steady hook and chain system from the ceiling (or if you have wall room, make sure its sturdy). This will allow you to see it from outside the glass window since theres no wall to nail it to.

If you want to hang it just normally on a wall (hobby room style), even though it weighs 15lbs, I recommend getting one of those 50lb nail sets with 3-4 nail holes just to hang it in normally from Lowes or HD. You can do a single or double row, whatever makes you more comfortable; either works fine.