Book and Movie covers are often built with Photohop:
Web Advertisements:
Adobe Photoshop
Adobe Photoshop is a powerful graphics program used by Web Designers, Graphic Designers, Photographers, Print Design, Illustrators and Artists.
Web Designers use Photoshop to make buttons for links and custom company logos as I have done here on the left of my page or for banners as you see at the top.
Photoshop can also be used to make signs or banners like the one I designed here:
One key element for a Web Designer using Photoshop is to build visual only web pages that can be presented to a client. This will give the client a good indication of what their site will look like without spending valuable time actually building the site just to find out they dont like it. Pages in Photoshop can also be saved for Web pages but it's not really recommended. However, portions can be cut out for headers, body and footers.
Here is an example of a mock-up I designed in Photoshop and saved in PDF format: