You can link from one page to another using the “Internal” link feature. To link offsite, use “External” links. For example, to create a persistent navigation menu you can Pin a page and use the Internal Link function to create links to your various pages.
In this Video:
Creating a link to an internal page
Creating a link to an external site
Setting a link to open a new window
Linking to the ‘Next’ page
Using icons as links
Using a logo as a link