One common use of links is in a table of contents, whereby it is handy for each item in the table of contents to be a link to its content so that you can simply tap on an item to jump to the content. This is much easier than having to search for the page or location where the content starts.
Usually, a textual link has a visual indication such as a dotted underline to indicate that it is a link. But it is possible for a link to not have any such indication if the author styled it as such.
This allows you to easily jump back to recent jump points. If you have jumped anywhere, then in the navigation bar, the Back button becomes enabled. This indicates that you can tap it to jump back to the last location from where you made the jump.
In addition to being able to jump back, you can also jump forward back to the location from where you made a return jump. You jump forward by tapping the Forward button in the navigation bar that becomes enabled if you ever make a return jump.
You can clear the jump history by selecting Clear History from the Marks section of the menu. iSilo™ saves the jump history across document closes and opens. Note that this saved information does not include the history of jumps to external documents.
Note: For documents in iSilo™ or Doc format, both local and document bookmarks are supported. All other document types only support local bookmarks.