"Just position a template on the wall, mark the hook locations, hammer in the hooks, and hang." Real Simple

Here’s what Real Simple Magazine says about Picturewall®

You have a keen eye for taking photographs, but when it comes to artfully arranging them on a wall, the results aren’t so pretty.  Replace your slightly askew lineup of mismatched frames with the Perfect Picturewall.

This system comes with everything you need but the hammer to create a display of up to 13 photos. ( 5 x 7 inches to 8 x 10 inches ) in less than 15 minutes — without taking a single measurement. In addition to the 10 wood frames ( shown here in Espresso ), Non-Glare lenses, precut mats, and all the hardware, you get two reusable templates that guarantee straight pictures on the first try.  Just position a template on the wall, mark the hook locations, hammer in the hooks, and hang.

Choose from the set arrangements, or get creative. At last, hanging pictures is as easy as point-and-shoot.