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 by pressing the Back key. If you jump all the way back to the first location in the jump history, you can press the Back key to close the document.
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 icon in the application 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.