You can use statistics for many things so it is very important to keep an eye your viewers. Paperturn has one basic statistic that you can see under each publication: it shows how many visits you get per day.
Another way to get statistics is to use Google Analytics which tracks all your visitors in detail. By using this program you can, for example, monitor the place at which your visitors are leaving your website. By keeping an eye on the statistics you can identify problems that need to be solved.