You can also choose to show your latest posts on the Presentation page. From the theme settings you can select how many posts to show and more will be loaded via an Ajax button.
Even if you can show your latest posts on the Presentation Page, you can also use the Blog Page Template
to designate another page as your primary blog posts page. While creating a new page or editing an existing one choose Blog Template
as the page template and save.
For more information read all the help sections from the Theme Settings