"A picture's worth a thousand words"
Even though this saying pre-dates the Internet, it still applies today. However, with 'inflation' on the rise, it's probably more like 100 words, or about twenty or so lines in a column, which is as much as you want to have without some kind of image to hold the reader's attention.
Inserting links into images in content so that the image referenced by the link will be shown, is fairly simple to do in Drupal. However, uploading the image file into a directory on the server where the web site is located can be a challenge. But don't worry; I'm here to help. The challenge is getting the upload service configured properly, and that's the administrator's job, not yours. Once configured, the upload is simple.
If your site doesn't have an editor or a module that provides uploading (FCKeditor does, as long as the upload service is enabled), then you'll need to resort to something more manual, such as FTP (File Transfer Protocol).
Let's add...