Nice little shelf.  I hung it horizontially (landscape) to cover more wall space, but you can hang it either way.  Simple to assemble and has good directions for getting the 2 screws in the wall at the right distance.  Just make sure the line between the holes is level (or have someone hold it up and mark the wall before drilling).  Also helpful to mark the shelf where the screw holes are, so you can hang it easier.  This is a simple, inexpensive shelf.  So you will see the lines where the boards meet, and they don't necessarily meet evenly at all intersections.  But it's nice for a basic shelf to put little items or décor.