Internal links: With internal links, you refer to other pages within your own website. The pages you link to with a so-called anchor give Google context about what a page is about. You can place these links yourself on your own website, but make sure you limit the amount. Too many internal links can potentially cause confusion for Google. As a rule of thumb, you can use 1 internal link per 100 words. The lower limit is 3 internal links, and the upper limit is 20.
