When designing a UI we usually go right from a quick paper sketch to HTML/CSS. We skip the static Photoshop mockup. Here are a few reasons why we skip photoshop: You can’t click a Photoshop mockup. This is probably the number one reason we skip static mockups. They aren’t real. Paper isn’t real either, but paper doesn’t have that expectation. A Photoshop mockup is on your screen. If it’s on your s