- Go to Appearance > Customize.
- Hover over the header area, especially around the logo & navigation menu. Hover until you see blue border with pencil icon.
- Click the pencil icon to edit the widget.
- You can add your own logo & change your blog title.
- To modify the menu items (adding menu items or delete the menu items), you can do that from the customizer like in my video below. Or you can also read how to modify your menu items in my tutorial here.