OJS provides a standard, user friendly home-screen that serves as a good home base for your readers. The below example is from a discontinued journal, and shows the typical layout of a journal's home screen.
Please note the following features in the above screen:
Managing the different elements on this screen are key to giving the users on your site a positive experience. To edit these boxes, and ultimately add an image, click on your username in the top right corner, and then select Dashboard.
As you may know, the Dashboard is where you can go to make changes to your journal. Once you are in your dashboard, click on Settings and then Website.
Now you will be looking at the Website Settings Screen - this screen is where you will go for any adjustments to your Ejournal website. Whether it is your color scheme, sidebar, menu-options - everything related to the reader's experience on your home screen can be altered in the Website Settings section.