Charts are a very important part of your overall experience. They drive much of the discussion and are often used in quizzes and assignments. So it's very important that you can see the charts clearly. All charts published on this site are set to publish at about 500 pixels wide. This way they don't crowd the articles or quizzes too much. Sometimes this size may not be large enough to see the detail you need. But don't worry; you can click on any chart (or image for that matter) and it will open full-size. Then just click on the "X" in the upper-right corner of that when you're done.