Create a new page, go to WP Dashboard > Pages > Add New.
Give the title of this page, for example, About. Use an Excerpt field to create a subheader for the page. Upload an image to the Featured Image box if you want to show a Featured Image. (the display mode of Featured Image You can select in the panel called Layout Options)
A page that has a default template assigned has additional options (Page Settings) that you will find below the main edit field. In addition, there is an option to hide the page title (Hide Page Title checkbox).