Photoshop mockups, known as PSD mockups, are design layouts which a web designer creates to show how they expect a final website or a product to look. They’re the next step after producing an early prototype design wire-frame layout. A PSD mockup provides the Photoshop-formatted files with all the detail and design choices including graphics, navigation elements, content areas and final tweaks to show how a fully-developed site is expected to appear to the visitor…