How do I use internal linking in my SEO marketing?

Internal linking is the process of linking to other pages within your website. It is an important aspect of SEO marketing as it helps search engines understand the structure and hierarchy of your website. To use internal linking effectively, you should create a clear site structure and organize your content into relevant categories. 
Then, use relevant anchor text to identify the key pages you want to rank for and link to them from other pages on your site. Ensure your internal links are natural and useful to the user, and avoid over-optimization or spamming. Finally, monitor your internal links regularly to ensure they are still working and relevant.