Categories Pages are those pages that you’ll find yourself into if you click on a Category. These collection of options help you define how this pages would look like.
Select your preferred layout for the categories page, would you like a right, left or no sidebar at all?
Once you’ve decided where you want to show a sidebar (if any) Select which one to show.
The drop down menu will list all of your Sidebars, you simply choose one. Feel free to <a href=”http://docs.creiden.com/circleflip/theme-options-2/sidebars/”>create a sidebar</a> specially for the Categories page.
Posts per Page
Now select the number of posts to show per page, say you clicked on a category named “Music” and you had 10 posts with the category “Music” added to them, this options sets how many (if any) to show in each page.
Set the order in which the selected posts appear in, this order is applied according to the publish date of these posts.