This module is used on every page of your site and is the first piece of information you'll enter when you start building a new page.
The Title is added when the page is saved the first time, so you won't see an icon in the 'add a module' window.
This is what the module looks like in Display mode. To edit the title, click the top bar of the module or use the ... (aka Power Dots).
This is the module in Edit mode. If you modify the title you'll need to Save the page to see the change on your website.