There are times when you may receive emails as newsletters, or some other emails with contains images and text both, but they does not load properly in your browser. The simplest way to solve this problem in gmail is to click the link show images so that the rich multimedia html message loads properly.
Some times the issue may not get solved by displaying images, as you may see the image with garbled text and messing all over the images and multimedia content. In such a case you can select the option Message text garbled? gmail message to load the message in plan text so you can read the text inside the mail in proper readable view.
Once you select this option, you will see the entire message in plain text which is definitely easy to read and understand the message in the mail as shown in the image below.