I am trying to use dynamic links for navigation within certain pages of my site.
I looked it up in the wordpress codex and found how to structure the links, but when i try applying this the anchor text disappears from my page.

WHy is my link disappearing and what am i doing wrong?

this is the link i am trying to use:
<a href="<?php echo get_permalink( 820 ); ?>">&lt;&lt;Prev</a>
this is the page i am trying to use it on: