This is an underrated SEO technique that you can take advantage of. When you link pieces from your own website, you signal to the search engine that you have useful information elsewhere yourwebsite. This is an opportunity for the search engine to discover new content which is a huge factor when it comes to ranking your website. 

When your internal linking game is strong, your search engine indexing gets better and it improves your chances of getting noticed on the SERP. This is an organic way to gain visibility and adding the right anchor text just makes it even better. Do this regularly with all your content.