Limited number of posting showing?

We have the Total Theme Version: 2.0.1 on our site and we have 38 posts that show the Workshops that are taking place at our event in October. Currently it only shows 14 at any one time? The only way that they more get displayed is by ‘Refreshing’ the page!

Is there any way that we can get all or more of our posts displayred at one time? When people visit our site for an event which is happening next month and see only 14 taking place may not wish to come?

I look forward to any help