1. Open your Web browser and navigate to Google.com.
2. Locate the 'Change Background Image' link on the bottom left side of the page, then click it. A dialogue window will open. This link is sometimes found in different locations on the Google homepage, depending on browser.
3. Click the 'Public Gallery' tab in the left sidebar to view public backgrounds.
4. Click on an image to choose it, then click the 'Select' button. The image will load to your Google homepage background.