This is an in-camera HDR image made with a Canon 5D Mark III. A little touch-up to remove flare spots and slightly lighten the shadows, but overall a pretty acceptable result for this high contrast scene.
A contact sheet is a set of pictures printed thumbnail-size on a single piece of paper. Photoshop Elements provides an easy way to create a contact sheet from the Organizer. The screen shots are from Elements 12 but you can accomplish the same thing in other versions.